Quantitative Aptitude - Arithmetic Ability Questions

Q:

The 3rd and 7th term of an arithmetic progression are -9 and 11 respectively. What is the 15th term?

A) 28 B) 87
C) 51 D) 17
 
Answer & Explanation Answer: C) 51

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Q:

The product of two numbers is 40. One of them is 2.50. What is the other number?

A) 14 B) 15
C) 16 D) 12
 
Answer & Explanation Answer: C) 16

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Q:

In the series 5442673314884743581,the number of 4s that are completely divisible by the number on their right but not divisible by the number on their left is

A) 3 B) 1
C) 0 D) 2
 
Answer & Explanation Answer: B) 1

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Q:

The sum of two digits of a number is 10. If the digits are interchanged, then its value increases by 18. Find the number.

 

A) 46 B) 64
C) 19 D) 28
 
Answer & Explanation Answer: A) 46

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Q:

Find the greatest number which on dividing 1580 and 3800 leaves remainders 8 and 1 respectively.

A) 262 B) 131
C) 65.5 D) 393
 
Answer & Explanation Answer: B) 131

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Q:

Which of the numbers given below is NOT rational?

A) 3√8 B) 3√64
C) √64 D) √8
 
Answer & Explanation Answer: D) √8

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Q:

If 3cos2x - 2sin2x = -0.75 and 0° x  90°, then x = ?

 

A) 30 deg B) 90 deg
C) 60 deg D) 45 deg
 
Answer & Explanation Answer: C) 60 deg

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Q:

What is the value of cos 11π/6?

A) -1/√2 B) -√3/2
C) 2/√3 D) √3/2
 
Answer & Explanation Answer: D) √3/2

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