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CSIR NET 2022 || General Aptitude || Numerical Ability (21.02.2022)
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Question 1
A simple random sample of 5 households is selected from apopulation of 30 households. The numbers of the persons in the sample households arc 3,6,3,4,4 . The estimate of the total number of the people in the population is
Question 2
As observed from the top of a lighthouse, 42 high above sea-level, the angle of depression of a ship sailing directly towards it changes from 30° to 45°. The distance travelled by the ship during the period of observation is :
Question 3
If a3 + b3 = 62 and a + b = 2, then the value of ab is:
Question 4
A man can row 30 km downstream and return to the starting point in 8 hours. If the speed of the boat in still water is four times the speed of the current, then the of the speed current is
Question 5
A trader had 9 quintals of wheat. He sold a part of it at 10% profit and the rest at 20% profit, so that he made a total profit of 14 %. How much wheat did he sell at 20% profit?
Question 6
Use the data given in the line charts given below to answer the questions that follows. The Line 1 tracks number of Jan-Dhan Accounts opened and Line 2 tracks the amount that has been deposited in these accounts in past 3 years. Assume that Jan-Dhan scheme started in 2014-15
What is the approximate average deposit in each Jan-Dhan account at the end of the year 2016-17?
Question 7
In the fig. below, the tangent to a circle of radius 1.5 cm from an external point P, is 2 cm long. Calculate the distance of P from the nearest point of the circumference.
Question 8
A rectangular tank has a volume of 192 m3. The perimeter of the base is 28m and the height of the 4m. The ratio of length and breadth of the base is:
Question 9
Solve: 
Question 10
Solve the following expression: 153 × 93 − 15552 = ?
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Jan 30CSIR NET & SET
