NSO Test Paper - (2012)Mental Ability
Q1: Which of the following statements is INCORRECT?
(a) All integers and fractions are called rational numbers.
(b) The number 0 is neither a positive nor a negative rational number.
(c) There are limited number of rational numbers between two rational numbers.
(d) A number that can be expressed in the form of p/q, where p and q are integers and q ≠0 is called rational number.
Q3: Lengths of some world's longest snakes are 9, 9, 4.3, 6, 6.5, 2.6, 5.6, 9.
The range in metres of the lengths is _________.
Q4: The least number which when increased by 5 is divisible by each one of 24, 32, 36 and 54 is______.
Q5:Amit, Raj, Kunal, Harsh and Armaan used different types of transport during holidays.
- Everyone except Harsh travelled on the bus.
- Kunal, Harsh and Armaan all went on an aeroplane.
- Everyone except Raj went in a taxi.
- Amit and Harsh both had a ride on a tram.
- Raj travelled on a bus and then a train to get his holiday destination.
Q6: Solve for x:
x + 3 x + 4 x + 5 x + 6
̶ ̶ ̶ ̶ ̶ - ̶ ̶ ̶ ̶ ̶ = ̶ ̶ ̶ ̶ ̶ ̶ - ̶ ̶ ̶ ̶ ̶
4 5 6 7
Q7: 60% of the population of city were men and the rests were women. Afterwards, 840 men left the city and 1000 women came to the city. As a result, the percentage of the men reduced to 56% of the population. The present population of the city is ________.
Q8: The given table shows a relationship between x and y.
The equation which is true for each of the ordered pairs in the table is ______.
(a) y = 3x + 2
(b) y = 2.5x + 6
(c) y = 3.5x + 2
(d) y = 3x + 6
Q9: The records of a sporting goods company shows that 4 out of every 100 footballs manufactured have some defect. The probability of drawing a football that will not have a manufacturing defect is _______.
Q10: In what time will the interest on a certain sum of money become (3/8)th of the amount at the rate of 6% p.a simple interest.
(a) 5 years
(b) 10 years
(c) 8 years
(d) 6 years
Q11: In the problem set, given below three figures are similar in a certain manner. However one figure is not like the other three. Choose the figure which is different from the rest.
1 1 4
8 ̶ ̶ - 4 ̶ ̶ + 2.8 + ̶ ̶ - 2.32 = 5.33
4 5 xthen x is _________.
(d) none of these
Q13: Select the figure which is embedded in the given figure (X).
Q14: Which of the following numbers is divisible by 9?
Q15: The elevator descends into a mineshaft at the rate of 8m/min. If the descent starts from 20m above the ground level, the time taken by the elevator to reach 300 m is
(a) 30 mins
(b) 40 mins
(c) 50 mins
(d) 1 hr
1. (c) There are infinite rational numbers between two rational numbers.
Answers will be posted soon...