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Quantitative Aptitude Interview Questions and Answers

1
Explain series: 2,7,24,77,.

2*3+1=7

7*3+3=24

24*3+5=77

77*3+7=238

Therefore ans is 238

2
A circular dart board of radius 1 foot is at a distance of 20 feet from you. You throw a dart at it and it hits the dartboard at some point X in the circle. What is the probability that X is closer to the center of the circle than the periphery?

1/4

3
If A is traveling at 72 km per hour on a highway. B is traveling at a speed of 25 meters per second on a highway. What is the difference in their speeds in m/sec?

yes the answer is 5sec..
converting 72kmph in m/sec we get 20m/sec
so 25-20=5sec/m

4
A candidate appearing for an examination has to secure 40% marks to pass paper I. But he secured only 40 marks and failed by 20 marks. What is the maximum mark for paper I?

let us consider x is the maximumber number of marks.

secured marks => 40% of x= 40/100 of x=2x/5

To pass an exam he has to score =fail marks+20
=40+20=60
2x/5=60
x=150
maximum marks for paper I is =150

5
A moves 3 kms east from his starting point . He then travels 5 kms north. From that point he moves 8 kms to the east.How far is A from his starting point?

diagramatically, u wil get a right angled triangle with sides 5 n 8.. using pythogoras th. 3rd side will b 9.43..

9.43+3= 12.43

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