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1
ok NATIONAL CYBER OLYMPIAD
CLASS
9
5
Years (2011-2015) Solved Papers
INSTANT
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Disclaimer : The information in this book is to give you the path to success but it does not guarantee 100% success as the strategy is completely dependent on its execution. And it is based on last years papers of NCO exam.
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CLASS 9
Contents ÂÂ 11th NCO 2011 ÂÂ 12th NCO 2012 - SET A ÂÂ 12th NCO 2012 - SET B ÂÂ 13th NCO 2013 - SET A ÂÂ 13th NCO 2013 - SET B ÂÂ 14th NCO 2014 - SET A ÂÂ 14th NCO 2014 - SET B ÂÂ 15th NCO 2015 - SET A ÂÂ 15th NCO 2015 - SET B
MTG WorkBooks / olympiad books CLASS 1
International English Olympiad
National Science Olympiad
International Mathematics Olympiad
Learning Science
Reasoning
Learning & Knowing
Learning Mathematics
Learning Computers
Anubhuti
CLASS 2
International Mathematics Olympiad
National Science Olympiad
National Cyber Olympiad
International English Olympiad
Learning Computers
Learning Science
Learning Mathematics
Learning & Knowing
Reasoning
Anubhuti
MTG WorkBooks / olympiad books CLASS 3
International Mathematics Olympiad
National Science Olympiad
National Cyber Olympiad
International English Olympiad
Learning Computers
Learning Science
Learning Mathematics
Learning & Knowing
Reasoning
Anubhuti
CLASS 4 CLASS 3
International Mathematics Olympiad
National Science Olympiad
National Cyber Olympiad
International English Olympiad
Reasoning
Learning Computers
Learning Science
Learning Mathematics
Learning & Knowing
Anubhuti
MTG WorkBooks / olympiad books CLASS 5
International Mathematics Olympiad
National Science Olympiad
National Cyber Olympiad
International English Olympiad
Reasoning
Learning Computers
Learning Science
Learning Mathematics
Learning & Knowing
Anubhuti
National Science Olympiad
National Cyber Olympiad
International English Olympiad
Reasoning
Learning Computers
Learning Mathematics
Learning & Knowing
CLASS 6
International Mathematics Olympiad
MTG WorkBooks / olympiad books CLASS 7
International Mathematics Olympiad
Learning Mathematics
National Science Olympiad
National Cyber Olympiad
Learning & Knowing
International English Olympiad
Reasoning
Science IQ Challenge
Math IQ Challenge
Learning Computers
Master Mental Ability in 30 Days
CLASS 8 CLASS 3
International Mathematics Olympiad
Learning & Knowing
National Science Olympiad
National Cyber Olympiad
International English Olympiad
Reasoning
Learning Computers
Learning Mathematics
Math IQ Challenge
Science IQ Challenge
The Secret of SUCCESS
Master Mental Ability in 30 Days
MTG WorkBooks / olympiad books CLASS 9
International Mathematics Olympiad
National Science Olympiad
National Cyber Olympiad
International English Olympiad
Reasoning
Math IQ Challenge
Science IQ Challenge
Psychology of Success
The Secret of SUCCESS
International Mathematics Olympiad
National Science Olympiad
National Cyber Olympiad
International English Olympiad
Reasoning
Math IQ Challenge
Science IQ Challenge
Psychology of Success
The Secret of SUCCESS
Master Mental Ability in 30 Days
Master Mental Ability in 30 Days
CLASS 10
MTG WorkBooks / olympiad books CLASS 11
International Mathematics Olympiad
Math IQ Challenge
Science IQ Challenge
National Science Olympiad
Psychology of Success
National Cyber Olympiad
The Secret of SUCCESS
Master Mental Ability in 30 Days
CLASS 12 CLASS 3
International Mathematics Olympiad
Math IQ Challenge
Science IQ Challenge
National Science Olympiad
Psychology of Success
National Cyber Olympiad
The Secret of SUCCESS
Master Mental Ability in 30 Days
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Class 9 11th
Year 2011
Class 9 | 11th NCO - 2011
2
MENTAL ABILITY 1.
Sandy has the following scores on her science tests. 88, 91, 89, 85, 92 If she wants to increase her current test mean by at least 1 point, what is the minimum score she must make on her next test ? (A) 89
2.
3.
(B) 90
Look at this number line. If point P represents closest to the value of x ?
(B) Point B
(C) Point C
(D) Point D
P A 0
B 5
C
D
10
15
Pia is a sales representative for a printer company. She sells two models of printers Model P and Model Q. Last month she sold a total of 120 printers. The ratio of Model P printers sold to Model Q printers sold was 3:5. If Pia is paid a ` 25 commission for every Model P printer sold and a ` 20 commission for every Model Q printer sold, what was her total commission last month ? (B) ` 2475
3
1
2
(1 / 2) – (1 / 3)
(C) ` 2625 1
(D) ` 2760
5
Simplify : 4 ÷ 2 4 of 3 - (1 / 2) + (1 / 3) × 3 3 + 6 = ? (A)
5.
(D) 95
x , which point is
(A) Point A
(A) ` 1480 4.
(C) 92
7 18
(B)
49 54
(C)
2 3
(D)
1 6
243 ft
The dimensions of 3 connected stores are shown in the figure. How many square feet of floor space are used by the 3 stores ?
Video Arcade
215 ft
(A) 9,600 ft 2 275 ft
128 ft Galore 188 ft
(C) 21,141 ft 2
75 ft
2
(D) 42021 ft 6.
(B) LK
(C) LJ
J K H
L (D) HJ
An article was sold for ` 144. If the percentage of profit was numerically equal to the cost price, the cost of the article was ______. (A) ` 72
8.
60 ft
The given cube is constructed so that the sphere shown would fit inside it, touching the centre of each face of the cube at exactly one point. Which of the following lengths best represents the diameter of the sphere ? (A) HK
7.
Sports
(B) 11,280 ft 2
(B) ` 80
(C) ` 90
(D) ` 100
What is the order of these numbers from least to greatest? 11 3.3, 3.3, 10 , 3 11 11 11 11 < 10 < 3.3 < 3.3 < 10 (D) 3.3 < 3.3 < 10 < (A) 10 < 3.3 < 3.3 < (B) 3.3 < 3.3 < (C) 3 3 3 3
Class 9 | 11th NCO - 2011
9.
3 y 6 5 4 3 2 1
Look at the given figure. What will be the new coordinates of the figure when it is reflected across the yaxis ? (A) (1, 1), (3, 4), (5, 2)
–6 –5 –4 –3 –2 –1 0 1 2 3 4 5 6 –1 –2 –3 –4 –5 –6
(B) (1, 1), (4, 3), (2, 5) (C) (–1, –1), (–3, –4), (–5, –2) (D) (–1, –1), (–4, –3), (–2, –5)
x
10. A cuboidal tank of base dimensions 220 cm × 20 cm is full of water. If 11 litres of water is drawn out, the water level in the tank will drop by _____. 1 cm 2
(A) 2 11.
3 (B) 11 cm 2
(C) 12
1 cm 2
(D) 14 cm
2 2 a 3 + 27 b 3 + 125c 3 - 45 2 abc is expressed as a product of a linear factor and a quadratic factor. . The linear factor is ______.
(A)
(B)
2a - 3b + 5 c
(C) - 2a + 3b + 5 c
2a + 3b + 5 c
(D) None of these
12. Which of the following could be the graph of ax + by = c where c ¹ 0 ? y y y (A) x¢
x
(B) x¢
(C) x¢
x
y¢
x
y¢
(D) None of these
y¢
A
13. Which of the following is correct ? (A) AB = AC
(B) AC > AB
(C) BC here href=''href://www.google.co.in''> here href= ''http://www.google.co.in''> here href=''http:www.google.home''>here
B.
21. Which of the following compression techniques is used to compress the multimedia data such as audio, video and images in applications like streaming media and internet telephony to reduce the download time?
-
