Maths Olympiad Class 5

PROBLEMS FOR MATHS OLYMPIAD Class-5 1. Look at the given series 21, 9, 21, 11, 21,...... . What number should come next? (A) 13

(B) 15

(C) 12

(D) 21

2. Count the number of triangles in the given figure. (A) 10 (B) 13 (C) 12 (D) None of these 3. Blueberries cost more than strawberries. Blueberries cost less than raspberries. Raspberries cost more than both strawberries and blueberries. If the first two statements are true, the third statement is : (A) False (B) True (C) Uncertain (D) None of these 4. IX + XV + XX is equal to : (A) 45 (B) 35 (C) 44 (D) 76 5. Arrange the words given below in a meaningful sequence. 1. House 2. Street 3. Room 4. Town 5. District (A) 3, 2, 1,4, 5 (B) 3, 1, 4, 2, 5 (C) 3, 1, 2, 4, 5 (D) 3, 1, 2, 5, 4 6. Which number completes the puzzle?

(A) 17 (B) 19 (C) 27 7. Which one will replace the question mark?

(A) 6

(B) 5

(C) 7

1

(D) 21

(D) 9

8. What kind of triangles will be obtained if X draws a line segment connecting points A and C on the rectangle shown below?

(A) Isosceles (B) Right angled (C) Equilateral (D) Obtuse 9. The water in Richa’s watering bucket is frozen. Which would most likely be the temperature of the water? (A) °C (B) 100°C (C) 50°C (D) 25°C 10. Rinky has a piece of ribbon which is 3 times as long as Mona’s ribbon. If Mona’s ribbon is 3.8 m long, how much longer is Rinky’s ribbon? (a) 1.2 m (B) 11.4 m (C) 9.4 m (D) 7.6 m 11. Which geometric figure has six square faces? (A) Cube (B) Cone (C) Cylinder (D) Sphere 12. Tinky cut each piece of paper shown below along the dotted line. Which of the following are the shapes of the four pieces?

(A) Triangles and rectangles (C) Squares and hexagons 13. 2 hrs after 10:30 am is : (A) 12:30 pm (B) 12:30 am

(B) Squares and triangles (D) Rectangles and circles (C) 8:30 pm

14. Which of the following has the same value as 5×

(D) 8:30 am

1 ? 3

(A)

1 +5 3

(B)

1 1 + 3 5

(C)

1 1 1 1 1 × × × × 3 3 3 3 3

(D)

1 1 1 1 1 + + + + 3 3 3 3 3

2

15. If the number sentence given below is true, which of the following is also true? 5,760 ÷ 24 = (A) 24 ×

= 5,760

(B) 5,760 – 24 =

(C) × 5,760 = 24 (D) 5,760 + 24 = 16. What is 6050.287 rounded to the nearest tenth? (A) 6050 (B) 6100 (C) 6050.29 (D) 6050.3 17. What number am I? I. I am a two-digit even number. II. I am a common multiple of 6 and 7. III. I have a total of 8 factors. (A) 45 (B) 42 (C) 36 (D) 84 18. What is the missing value in the given pattern? 0.25 × 12 = 0.25 × 3 + 0.25 × 3 + 0.25 × _____. 19.

20.

21.

22.

23.

24.

(A) 2 (B) 3 (C) 6 (D) 8 Gajodhar is making a math puzzle. He writes that ‘W’ is an even number which has 12 as a factor. Which of the following could represent the variable ‘W’? (A) 2156 (B) 1728 (C) 1429 (D) 1256 A shopkeeper mixed 3.6 kg of hazelnuts with 0.75 kg of raisins. He packed the mixture equally into 5 boxes. What is the weight of each box? (A) 14.25 kg (B) 4.35 kg (C) 0.87 kg (D) 0.72 kg Every week Saloni saves 10 on Monday and 15 on Friday. If this is her total weekly savings, how many weeks would she take to save enough to buy a 175 wirelsss phone? (A) 52 weeks (B) 46 weeks (C) 7 weeks (C) 14 weeks There are 9 rows of seats in a theatre. Each row has the same number of seats. If there is a total of 162 seats, how many seats are in each row? (A) 17 (B) 19 (C) 18 (D) 20 The temperature of water in a swimming pool is 51°F. Since the freezing point of water is 32°F, how many degrees would be temperature of the water have to drop to reach the freezing point? (A) 9°F (B) 21°F (C) 2°F (D) 19°F There are 26 bird houses made at a factory each hour. What is the total number of bird houses made at the factory in 8 hours? 3

(A) 64 25. A beaker is

(B) 34

(C) 202

(D) 208

5 filled with water. Another 10 litres of water is needed to fill the beaker 7

to its brim. What is the capacity of the beaker? (A) 50 litres (B) 20 litres (C) 70 litres (D) 35 litres 26. A car can travel 315 km on 30 litres of petrol. How far can the car travel if it has 50 litres of petrol in its petrol tank? (A) 10.5 km (B) 189 km (C) 525 km (D) 840 km 27. A shirt costs 12 more than a belt. The total cost of 2 such shirts and 5 such belts was 164. What was the cost of a belt? (A) 20 (B) 22 (C) 32 28. What is the approximate measure of this angle in degrees? (A) 20° (B) 45° (C) 110° (D) 135°

(D)

34

29. If 12 litres of milk cost 120, then what is the cost of 5 litres of milk? (A) 15 (B) 25 (C) 50 (D) none of these 30. Abhilasha made cake for a party. She put the cake into the oven at twenty-five past four and took it out thirty minutes later. What time was it when Abhilasha took out the cake? (A) Five past eight (B) Five o’clock (C) Five to five (D) Five past four Direction (31 – 37) : Complete the pattern given below in the following questions. 31. ↑↓↑↑↓↓↑↑↑↓ (A) ↑↑

?

. (B) ↓↓

(C) ↓

32.

(D) ↓↓↓

? (A)

(B)

(C)

33.

(D) ?

(A)

.

(B)

(C)

4

. (D)

34.

? (A)

(B)

. (C)

35.

? (A)

(B)

(D)

.

(C)

36.

(D)

?

.

(A)

(B)

(C)

(D)

(A)

(B)

(C)

(D)

37.

5