3. Mathematics

RIMC DAILY PRACTISE PROBLEM SESSION-2012-13 MATHS

DPP: 01

Class –VII

NUMBER SYSTEM 1.

Which of the following is the smallest : (A)

2.

57 100

(D)

8 be multiplied to obtain 26? 39 507 407 (B) (C) 4 4

507 4

Find the value. 4 (A)

4.

(B)

3 5

By what rational number should (A)

3.

14 25

14 57 49 3 , , , . 25 100 86 5 49 (C) 86

(D) None

5 3 7 – 2 3 6 8 12

145 24

(B)

145 12

(C)

92 21

(D)

How many numbers are there containing 2 digits. (A) 90 (B) 99 (C) 100

145 4

(D) 89

5.

How many rational numbers exist between any two distinct rational numbers? (A) 2 (B) 3 (C) 11 (D) Infinite numbers

6.

The last digit of the number (373)333 is : (A) 1 (B) 2

7.

(C) 3 11

(D) 9 5

2

Find the total number of factors in the expression (4) × (7) × (11) . (A) 410 (B) 414 (C) 416

(D) 418

8.

A gardener plants tree in rows and finds that each row contains twice as many tree as these are rows. If the number of trees be 5408. Then the number of tree in each row is : (A) 100 (B) 104 (C) 108 (D) 112

9.

What is the decimal form of

1 1 1 + + ? 2 4 8 (B) 0.875

(A) 0.155

(C) 0.825

(D) 0.625

10.

Find the smallest number by which 2560 must be multiplied, so that the product is perfect cube. (A) 25 (B) 5 (C) 125 (D) 8

11.

If

3 6 of a number is 22. What is of that number? 11 11

(A) 6

(B) 11

(C) 12

(D) 44

12.

On dividing a number by 999, the quotient is 366 and the remainder is 103. The number is : (A) 364724 (B) 365387 (C) 365737 (D) 366757

13..

Successor of 301999 is ............... (A) 30200 (B) 302000

14.

(A) 15.

(C) 302010

(D) 301100

a If 7a = 3 and 3b = 7, what is the value of ? b 9 49

(B)

7 3

(C)

3 7

(D)

49 9

The digit in the unit place in the expansion of 427 is (A) 2

(B) 4

(C) 6

(D) 8

RIMC DAILY PRACTISE PROBLEM SESSION-2012-13 MATHS

DPP: 02

Class –VII

SURDS & EXPONENTS AND H.C.F. & LCM 1.

The rationalising factor of a  b  ab is (A) a  b  ab

2.

(B) a  b  ab

4.

5.

7.

The value of

11 3

(D)

13 5

(C)

1 9

(D)

2 3

(D)

1 108

is :

9 13

3

should be divided so that quotient becomes 128 ? (B)

1 72

(C)

1 90

(B) 0.478 × 1012 (C) 0.0478 × 1011

(D) Both are equal

(B) 0

(C) 1

(D) 2

The LCM of two numbers is 864 and their HCF is 144. If one of the numbers is 288, the other numbers are: (B) 1296

(C) 432

(D) 144

Two numbers are in the ratio of 15 : 11. If their H.C.F is 13, find the numbers. (B) 195, 123

(C) 175, 123

(D) 163, 115

(C) 12

(D) 10

Highest common factor of 144, 180 and 192 is (B) 6

Find the least number which when divided by 6, 7, 8, 9 and 10 leaves reamainder 1. (A) 2531

13.

(C)

The expression xa(b – c). xb(c – a).xc(a – b) simplifies to :

(A) 2 12.

(B)

(D) none of these

Which is greater 3.5 × 1010 or 0.478 × 1012

(A) 195, 143 11.

3 5n

3 By what number   4 1 (A) 54

(A) 576 10.

3 (12  n )  9 ( 2n 7 )

1 3

(A) – 1 9.

(D) 0.0625

(C) 0.00625

If 5 x + 3 = (25)3x – 4, then the value of x is : 11 5 (A) (B) 5 11

(A) 3.5 × 1010 8.

(B) –16

By what number should (– 8)–1 be multiplied to get 10–1 ? 4 4 5 (A) (B) (C) 5 5 4

(A) 6.

(D) None

The value of [(22)2]–1 is : (A) 16

3.

(C) a  b  ab

(B) 2521

(C) 5041

(D) 7561

A rectangular courtyard 3.78 metres long and 5.25 metres wide is to be paved exactly with square tiles, all of the same size. What is the largest size of the tile which could be used for the purpose ? (A) 14 cms

14.

(C) 42 cms

(D) None of these

Two number are in ratio of 6 : 13. If L.C.M. of these numbers is 468 then H.C.F. will be : (A) 6

15.

(B) 21 cms

(B) 7

(C) 8

(D) 9

(C) 337/6

(D) None of these

Simplify (94/3  272/3) × 33/2 (A) 39/5

(B) 313/6

RIMC DAILY PRACTISE PROBLEM SESSION-2012-13 MATHS

DPP : 3

Class –VII

Algebraic Expression 1. 2.

What should be subtracted from (2 – x + x2) to obtain (x – 1) ? (A) 2x – 3 – x2 (B) 3 + 2x – x2 (C) 3 + 2x + x2

(D) 3 – 2x + x2

The degree of the polynomial 7x –5x3 + 2x2 + 7 is : (A) 2 (B) 3 (C) 7

(D) – 5

3.

What should be the value a if the value of 3x2 – 5x + a equals to 7, when x = – 1 (A) 1 (B) –1 (C) 2 (D) – 2

4.

Simplify : 7x + 2[– x + 2{x – 2(x + 5y)}] (A) x + 40y (B) x – 40y

5.

(C) – x + 40y

If a – b > 0, then ..........Fill in the blank with proper option. (A) a < b (B) a = b (C) a > b

(D) – x – 40y (D) a  b

6.

If A = 2, B = –1, C = – 3, find the value of 2(A +B) + 3(B + C) – 4 (C + A). (A) – 6 (B) 6 (C)– 8 (D) 8

7.

How much is 3p4 + p3 – 2p2 + p + 4 greater than 2p3 + 7p2 – 5p + 6 ? (A) 3p4 – p3 – 9p2 + 6p – 2. (B) 3p6 – 2p3 – p2 + 6p – 4. (C) p4 – 4p3 – 6p2 + 3p – 2. (D) 3p4 + p3 – 6p2 + 10p – 2.

8.

Simplify : – m – [m + {m + n – 2m – (m – 2n)} – n] (A)– 2n (B)– 2m (C)– 3n

(D)– 6n

The product of (a + b – c) and (a – b + c) is (A) a2 – b2 – c2 – 2bc (B) a2 – b2 – c2 + 2bc

(D) a2 + b2 + c2 – 2bc

9.

(C) a2 + b2 + c2 + 2bc

10.

Find the sum of f(x) & g(x) where f(x) = 4x5 + 3x3 + 4x2 + x + 1 g(x) = 5x4 + x5 + x3 + 3 (A) 5x5 + 5x4 + 4x3 + 4x2 + x + 4 (B) 5x5 + 5x4 + 4x3 + 4x2 + x – 4 (C) 5x5 + 5x4 + 4x3 – 4x2 + x – 4 (C) 5x5 – 5x4 + 4x3 – 4x2 + x – 4

11.

Subtract h(x) from the sum of f(x) & g(x) where f(x) = x 3 + x 2 + x + 1, g(x) = 2x 3 – 3x 2 + 1 h(x) = 3x2 – 4x3 + 5x + 7 (A) 7x3 – 5x2 – 4x – 5 (B) –7x3 – 5x2 – 4x + 5 3 2 (C) 7x + 5x – 4x + 5 (D)–7x3 – 5x2 + 4x + 5

12.

If a = – 2, b = 3 and c = 4, then the value of a3 + b3 + 3a2c – 4bc3 is : (A) 107 (B) – 107 (C) 701

(D) – 701

13.

Divide : –15x3y4z5 + 10x2y3z4 – 25x4y3z5 by – 5x2y3z3. (A)3xyz2 – 2z + 5x2z2 (B)2yz2 – 2xz + 5xz2 (C)–4xyz2 – 2zx + 5x2z2 (D)–3xyz2 – 2z – 5x2z2

14.

Simplify : 7 – [ 3x + { – 2y + 3z – ( 3y + 5z) + 8 } – ( 3y2 + 7x) + 9] (A) – 10 + 4x + 5y + 2z + 3y2 (B) 10 + 5x + 5y + 10z + 3y2 (C)– 15 + 4x + 3y + 3z + 3y2 (D)– 10 + 10x + 5y + 2z + 6y2

15.

1 2 2 2 3 2  The algebraic expression  x y z   3 x   y z  when expressed as monomial is : 4   2 

(A)

9 3 4 3 x y z 8

(B)

1 2 2 2 x y z 2

(C)

8 3 4 3 x y z 9

(D)

3 3 2 x y z 4

RIMC DAILY PRACTISE PROBLEM SESSION-2012-13 MATHS

1.

DPP : 4

Average & Ratio Proportion The average of first 50 natural numbers is : (A) 12.25

2.

(B) 21.15

(C) 25

(D) 25.5

The average of four consecutive even numbers is 27. Find the largest of these numbers. (A) 50

3.

Class –VII

(B) 40

(C) 20

(D) 30

The average of 11 results is 60. If the average of first six results is 58 and that of the last six is 63, find the sixth result. (A) 66

(B) 70

(C) 78

(D) 85

4.

Average of 6 numbers is 8. What number should be added to it to make the average 9? (A) 15 (B) 16 (C) 17 (D) 18

5.

If 2A = 3B = 4C, then A : B : C is ; (A) 2 : 3 : 4 (B) 4 : 3 : 2

(C) 6 : 4 : 3

(D) 20 : 15 : 2

If 2A = 3B and 4B = 5C, then A : C is : (A) 4 : 3 (B) 8 : 15

(C) 15 : 8

(D) 3 : 4

6.

7.

(A) Rs. 182 8.

9.

If

(C) 6

(D) 5

a b c   , then a  b  c is equal to:3 4 7 c

(B) 2

(C)

1 2

(D)

1 7

If (x : y) = 2 : 1, then (x2 – y2) : (x2 + y2) is : (A) 3 : 5

11.

(B) Rs. 190

x : 6 : : 32 : 24. What is the value of x? : (A) 7 (B) 8

(A) 7 10.

1 2 3 : : , then the first part is : 2 3 4 (C) Rs. 196 (D) Rs. 204

If Rs. 782 be divided ·into three parts, proportional to

(B) 5 : 3

The fourth proportional to 5, 8, 15 is:(A) 18 (B) 24

(C) 1 : 3

(D) 3 : 1

(C) 19

(D) 20

12.

Rahul and sudhir have an amount of rupees in the ratio of 3 : 5. The total amount is Rs.160. Find the amount that Rahul have. (A) Rs.60 (B) Rs.100 (C) Rs.20 (D) Rs. 80

13.

The price ratio of one scooter and one cycle is 9 : 5. If the value of scooter is 4200 Rs. more than cycle, the price of cycle will be : (A) Rs.5250 (B) Rs.5200 (C) Rs.5000 (D) Rs.4800

14.

28 litre mixture of milk and water contains milk and water in the ratio . of 5 : 2. If 2 litre of water be added to this mixture, then the ratio of water and milk is : (A) 7: 2 (B) 5: 4 (C) 1: 2 (D) 2: 1

15.

If

x 3 xy = , then is equal to : y 2 x–y

(A)

4 3

(B)

1 2

(C)

5 4

(D) 5

RIMC DAILY PRACTISE PROBLEM SESSION-2012-13 MATHS

DPP : 5

Class –VII

Time & Distance and Work and Time 1.

A man travels Ist 50 km at 25 km/hr, next 40 km with 20 km/hr. and then 90 km at 15 km/hr. Then find his average speed for the whole journey (in km/hr) (A) 11 km/hr. (B) 18 km/hr. (C) 16 km/hr. (D) 15 km/hr.

2.

If a cyclist travels 82 kms/day. How far he will reach in 82 days from his starting point ? (A) 164 km (B) 6400 km (C) 7744 km (D) 6724 km

3.

An athlet run 100 metres in 10 seconds. Then his speed is (A) 36 km/hr (B) 54 m/sec (C) 10 km/hr

(D) 10 km/sec.

4.

A farmer travelled a distance of 61 km in 9 hours. He travelled partly on foot with speed of 4 km/hr and partly on bicycle by speed of 9 km/hr. The distance travelled on foot is : (A) 14 km (B) 15 km (C) 16 km (D) 17 km

5.

A car takes 4 hours to travel a distance of 200 km. How long will it take to travel a distance of 310 km ? (A) 6 hrs. 20 min. (B) 6 hrs. 10 min. (C) 6 hrs. (D) 6 hrs. 12 min.

6.

If 160m long train is running at a speed of 72 k.m./h. Then it will take to pass a electric pole in _______Seconds. (A) 8 (B) 16 (C) 24 (D) 32

7.

Rama took 45 minutes to cycle 15 km after which he increased his speed by 5 km/hr. How much time he takes to cycle next 20 km ? (A) 60 minutes (B) 45 minutes (C) 48 minutes (D) 54 minutes

8.

Two trains running in the same direction at 40 km/hr. & 22 km/hr. completely pass one another in 1 minute. If the length of the 1st train is 125 m., then what length of 2nd train. (A) 150 m (B) 125 m (C) 175 m (D) None of these

9.

A 400 m long train is running at the speed of 60 km per hour. It crosses a bridge of length 800 m in (A) 6

2 seconds 3

(B) 20 seconds

(C) 2 seconds

(D) 72 seconds

10

24 men can complete a given job in 40 days. Then, find the number of men required to complete job in 32days. (A) 31 men (B) 38 men (C) 32 men (D) 30 men

11.

If a man can complete a piece of work in 10 days. Then calculate the amount of work done by him in 7 days. 1 1 7 7 (B) (C) (D) 7 10 11 10 If 40 persons consume 240 kg. of rice in 15 days, in how many days will 30 persons consume 48 kgm of rice. (A) 2 days (B) 3 days (C) 4 days (D) 5 days

(A) 12.

13.

A can do a piece of work in 10 days which B alone can do in 12 days. In how many days can both do it working together? 60 days (D) 8 days (A) 11 days (B) 15 days (C) 11

14.

If 12 men or 18 women can reap a field in 14 days, then find the number of days that 8 men and 16 women will take to reap the same field. (A) 19 days

15.

(B) 9 days

(C) 29 days

(D) 49 days

If 8 men can do the work in 60 hours, then the number of men would be needed to complete work in 12 hours is ____. (A) 30 (B) 40 (C) 60 (D) 80

RIMC DAILY PRACTISE PROBLEM SESSION-2012-13 MATHS

1.

2.

DPP : 6

Class –VII

Lines & Angles and Triangles Two complementary angles differ by 16º find the angles. (A) 53º , 37º (B) 56º , 40º (C) 62º , 28º

(D) 59º, 31º

Diagonal DB of a rhombus ABCD is equal to one of its sides.The value of A is : (A) 30º

D

C

(B) 60º (C) 120º A

(D) 90º 3.

B

In the given figure, if AOB is a straight line, then the value of x is :

D x + 15° A (A) 90° 4.

5.

C 45° O

(B) 45°

s

x + 30° B

(C) 22

1 2

In figure, if x + y = w + z then measure of AOB is (A) 180° (B) 150° (C) 200°

(D) 150°

(D) 190°

In the figure,  parallel to m and AX and AY are transversals. Then the value of the angle (x + y – z) is : (A) 110º (B) 80º (C) 40 (D) 30º

6.

In triangle ABC ,If A = (A) 30º

C B = , find A of a triangle. 3 2 (B) 60º (C) 90º

(D) none of these

7.

How many degrees are there in an angle which equals one fifth of its supplement ? (A) 15° (B) 30° (C) 75° (D) 150°

8.

I n t h e g i v e n F i g u r e , i f E C | | A B ,  E C D = 7 0 º and  BDO = 20º, then  OBD is – (A) 20º (B) 50º (C) 60º (D) 70º

9.

In figure side QR of  PQR has been produced to S. If P : Q : R = 3 : 2 : 1 and RT  PR , find TRS.

(A) 60º 10.

(C) 50º

(D)75º

In given figure find the values of x and y. If QS = RQ. (A) 45º, 26º

11.

(B) 80º

(B) 46º, 24º

(C) 50º, 26º

(D) 50º, 24º

In ABC , AD bisects BAC and AD= DC. If ADB = 100º, then find ABD. A

100º

B (A) 30º 12.

(C) 60º

(D) 90º

(B) 110º

(C) 70º

(D) 140º

In a triangle, one angle is thrice the smallest angle and it is also greater than third angle by 23º, then greatest angle of triangle is : (A) 64º

14.

(B) 45º

In the Figure, AB || CD,  ABO = 40º and  CDO = 30º. If  DOB = xº, then the value of x is :–

(A) 35º 13.

C

D

(B) 81º

(C) 87º

(D) 92º

(C) 30º,60º,90º

(D)40º,60º,80º

(C) 35º

(D) 20º

Find all the angles of triangle in the given figure. P x

Q

(A) 34º,68º,78º 15.

2x

78º R

(B) 36º,64º,78º

In the figure given below, find the value of y.

(A) 15º

(B) 30º

RIMC DAILY PRACTISE PROBLEM SESSION-2012-13 MATHS

DPP : 7

Class –VII

Polygon & Circle 1.

If radius CA = 5 cm and chord AB = 8 cm, find the distance of the chord AB from the centre C : (A) 1.5 cm (B) 2 cm (C) 3 cm (D) 3.5 cm

2.

Find the number of diagonals that can be drawn in a pentadecagon i.e. fifteen sided figure. (A) 90 (B) 65 (C) 75 (D) 100

3.

Find the value of a & b.

(A) 40º, 90º 4.

(B) 50º, 90º

(C) 45º, 85º

(D) 55º, 60º

In the given figure, if ACB = 40º, DPB = 120º, then y will be (A) 40º (B) 20º (C) 0º (D) 60º

5.

9 If one of the interior angles of a regular polygon is to be equal to   times of one of the interior angles 8

of a regular hexagon, then the interior sides of the polygon is : (A) 7 (B) 8 (C) 4

(D) 5

6.

Each exterior angle of a regular polygon is 40º, the number of sides of the polygon is (A) 8 (B) 9 (C) 6 (D) 10

7.

In the diagram, if AEB = 130º and EBC = 20º, then BDA will be D

C E 130º

A

(A) 100º 8.

(B) 110º

20

º

B

(C) 130º

(D) 70º

If the sum of interior angles of a polygon is 1620.Find its number of sides. (A) 11 (B) 12 (C) 9 (D) 15

9.

In the given figure find the value of ADB

B

C 105º

D

A

(A) 15º 10.

11.

(B) 25º

(C) 30º

Find the number of diagonals that can be drawn in a regular heptagon. (A) 14 (B) 15 (C) 20

(D) 40º

(D) 10

BC is the diameter of a circle. Points A and D are situated on the circumference of the semi circle ABD = 35º and BCD = 60º, ADB equals to : D

A 35º

60º

B

(A) 20º

(B) 25º

C

(C) 30º

(D) 115º

12.

If an interior angle of a regular polygon is 144º, then how many sides the polygon has ? (A) 36 (B) 14 (C) 10 (D) 8

13.

Find the measure of each angle of a regular quadrilateral. (A) 60º (B) 100º (C) 90º

14.

(D) 120º

In a figure, O is the centre of circle and ACB = 35º. Then AOB is equal to : (A) 35º (B) 17½º

O

(C) 70º (D) 145º 15.

C º 35

B

A

The value of x in the given figure is :

30º 20º x

(A) 30º

(B) 20º

(C) 10º

(D) 40º

RIMC DAILY PRACTISE PROBLEM SESSION-2012-13 MATHS

1.

DPP : 8

Class –VII

Mensuration – 2D The sides of an equilateral triangle are (2a – b) cm, (a + 3b) cm and (2a – 2b + 1) cm then the perimeter of the triangle is : (A) 3 cm (B) 12 cm (C) 15 cm (D) 21 cm

2.

The base of a parallelogram is thrice its height. If the area is 867cm2, find the base and height of the parallelogram. (A) 51 cm,17 cm (B) 48 cm,16 cm (C)15 cm,16 cm (D)51 cm,16 cm

3.

An orchard in the shape of trapezium has the parallel sides of lengths 33 m and 12 m. The distance between them is 24 m. How many fruit trees can be in the orchard, if each tree occupies 30 sq.m. of area: (A) 17 (B) 18 (C) 19 (D) 20

4.

Area of a trapezium is 91 cm2 and its height is 7 cm. If one of the parallel sides is longer than the other side by 8 cm, the length (in cm) of the smaller side is : (A) 6 (B) 7 (C) 9 (D) 17

5.

Diagonals of rhombus are 15 cm and 20 cm. Find its area and perimeter. (A) 150,50 (B) 300,50 (C) 150,25

(D) 300,25

2

6.

The area of a rhombus is 54 cm . If its perimeter is 36cm, find its altitude. (A) 6 cm (B) 5 cm (C) 4 cm (D) 8 cm

7.

Length of two sides of a parallelogram are in the ratio of 2 : 3. Find the sides of the parallelogram if its perimeter is 120 m. (A) 36,24 (B) 72,48 (C) 36,48 (D) 72,24

8.

Find the area in sq. cm of an isosceles triangle whose base is 16 cm and each of the equal sides is 9 cm. (A) 8

(B) 8 17

(C) 4 17

(D) 16 17

9.

A lawn is in the shape of a rectangle of length 80 m and width 40 m. Out side the lawn there is a footpath of uniform width 3m. Find the area of the path (A) 775 m2 (B) 825 m2 (C) 756 m2 (D) 1100 m2

10.

The adjacent sides of a parallelogram are 10 m and 8 m . If the distance between the longer sides is 4 m, then the distance between the shorter sides is : (A) 2 m (B) 3 m (C) 4 m (D) 5 m In the given figure, the area of triangle LMN is : (A) 18 cm2

11.

(B) 12 cm2 (C) 36 cm2 (D) 40 cm2 12.

Length of rectangle is 10 metres less than 3 times of its breadth. If its perimeter is 60 metres, length in meter is (A) 10 (B) 20 (C) 30 (D) 40

13.

Find the altitude of a parallelogram whose area is 2.25 m2 and base it 25 dm. (A) 9dm (B) 0.9dm (C) 2.5dm (D) 0.09 dm

14.

The area of triangle is 900 cm2 and its base is 45 cm.The height of the triangle will be : (A) 60 cm (B) 36 cm (C) 40 cm (D) 20 cm

15.

Find the area of the given quadrilateral ABCD, whose diagonal AC = 19.5 cm and the offsets on it are 5.4 cm and 10.6 cm. (A)156 sq cm (B)312 sq cm (C) 273 sq cm (D) 137 sq cm

RIMC DAILY PRACTISE PROBLEM SESSION-2012-13 MATHS 1.

DPP : 9

Mensuration – 2D, 3D The radius of a circle of area 616 cm2 is : (A) 16 cm

2.

(B) 12 cm

(C) 14 cm

(D) None of these

If the perimeter of a square is (4y + 12) m, then the length of its diagonal is :

y3

m

4 y  12

m 2 2 The circumference of a circle exceeds the diameter by 16.8 cm. Then, the radius of the circle. (A)

3.

Class –VII

(A) 3.10 cm

(B)

2 y  3 m

(B) 3.25 cm

(C)

2 4 y  12 m

(C) 3.92 cm

(D)

(D) 3.5 cm

4.

One room’s breadth is double its height and half its length. If volume of room is 512 cubic meter then length of the room will be – (A) 12 m (B) 16 m (C) 20 m (D) 32 m

5.

The area of a square is 225 sqm. Then, the perimeter of the square is : (A) 50 m

(B) 15 m

(C) 15 2 m

(D) 60 m

6.

The edge of cube is 20 cm. How many small cubes of 5 cm edge can be formed from this cube ? (A) 4 (B) 32 (C) 64 (D) 100

7.

A water tank whose dimensions are 1.5 m, 0.75 m and 0.48 m is full. Its contents are emptied into another empty tank whose area is 1 m2. How much the water level shall rise ? (A) 64 cm (B) 54 cm (C) 5.4 cm (D) 34 cm

8.

A race track is in the form of a ring whose inner circumference is 352 m, and the outer circumference is 396 m. Find the width of the track. (A) 7 (B) 6 (C) 11 (D) 5

9.

Three equal cubes are placed adjacently in a row. Find the ratio of the total surface area of the new cuboid to that of the sum of the surface areas of three cubes. (A) 7 : 19

(B) 7 : 9

(C) 8 : 9

(D) 7 : 8

10.

A thin wire is bent into the form of a circle of radius 7 cm. If a square is made out of this wire, the side of the square would be : (A) 7 cm (B) 14 cm (C) 11 cm (D) 22 cm

11.

A square ABCD is inscribed in a circle and AB = 4 cm, then radius of the circle is: (A) 2 cm

12.

The area of a square field is 2 (A)

13.

25 16

15.

(B)

(C) 4 cm

(D) 4 2

113 square metres. Find the length of one side of the field. 256

24 13

(C)

25 13

(D)

24 16

3 m. How many revolutions will it make in travelling 11 km : 4 (B) 925 (C) 950 (D) 1000

The radius of a circular wheel is 1 (A) 900

14.

(B) 2 2

The ratio of circumferene of any circle to its radius is alway equal to (A) 3.14 (B) 1.414 (C) 1.732

(D) 6.28

A closed tank 12 m long, 9 m wide and 4 m deep is to be made. Determine the cost of iron sheet used at the rate of Rs 5 per metre, sheet being 2 m wide. (A) Rs 960 (B) Rs 940 (C) Rs 900 (D) Rs 860

MATHEMATICS _CLASS-VII : DPP-1_ANSWERKEY Que s. Ans. Que s. Ans.

Number system : 1

1 A 11 D

2 B 12 C

3 A 13 B

4 A 14 A

5 D 15 B

6 C 16

7 B 17

8 B 18

9 B 19

10 A 20

8 C 18

9 C 19

10 A 20

8 A 18

9 B 19

10 A 20

8 B 18

9 B 19

10 A 20

8 C 18

9 D 19

10 D 20

8 B 18

9 A 19

10 A 20

8 A 18

9 A 19

10 A 20

8 B 18

9 C 19

10 D 20

8 A 18

9 B 19

10 C 20

MATHEMATICS _CLASS-VII : DPP-2_ANSWERKEY Que s. Ans. Que s. Ans.

Number system : 2

1 C 11 C

2 D 12 B

3 C 13 B

4 B 14 A

5 C 15 B

6 A 16

7 B 17

MATHEMATICS _CLASS-VII : DPP-3_ANSWERKEY

Algebeaic expression : 3

Que s. Ans. Que s. Ans.

1 D 11 A

2 B 12 C

3 B 13 A

4 B 14 A

5 C 15 A

6 A 16

7 A 17

MATHEMATICS _CLASS-VII : DPP-4_ANSWERKEY Que s. Ans. Que s. Ans.

Average & Ratio Proportion

1 D 11 B

2 D 12 A

3 A 13 A

4 A 14 C

5 C 15 D

6 C 16

7 D 17

MATHEMATICS _CLASS-VII : DPP-5_ANSWERKEY

Time & Distance and Work and Time

Que s. Ans. Que s. Ans.

1 B 11 A

2 D 12 C

3 A 13 C

4 C 14 B

5 D 15 B

6 A 16

7 C 17

MATHEMATICS _CLASS-VII : DPP-6_ANSWERKEY

Lines & Angles and Triangles

Que s. Ans. Que s. Ans.

1 A 11 A

2 B 12 C

3 B 13 87

4 A 14 A

5 C 15 A

6 A 16

7 B 17

MATHEMATICS _CLASS-VII : DPP-7_ANSWERKEY

POLYGON & CIRCLE

Que s. Ans. Que s. Ans.

1 C 11 B

2 A 12 C

3 A 13 C

4 B 14 C

5 B 15 C

6 B 16

7 B 17

MATHEMATICS _CLASS-VII : DPP-8_ANSWERKEY

Mensuration 2D

Que s. Ans. Que s. Ans.

1 D 11 A

2 A 12 B

3 B 13 A

4 C 14 C

5 A 15 A

6 A 16

7 A 17

MATHEMATICS _CLASS-VII : DPP-9_ANSWERKEY

MENSURATION 2D& 3D

Que s. Ans. Que s. Ans.

1 C 11 B

2 B 12 A

3 C 13 D

4 B 14 D

5 D 15 A

6 C 16

7 B 17