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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

∆DEF is right angled at E. If tanD = 12/5, then what is the value of secF ?

 

A) 5/12   B) 13/5  
C) 5/13 D) 13/12
 
Answer & Explanation Answer: D) 13/12

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

0 46923
Q:

What least number must be subtracted from 13601, so that the remainder is divisible by 87 ?

A) 23 B) 31
C) 29 D) 37
 
Answer & Explanation Answer: C) 29

Explanation:

87)13601(156
       87
       -----
       490
       435
        -----
        551
        522
         -----
         29
         -----
Required number is 29.

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Filed Under: Numbers

195 46905
Q:

The ratio of the present ages of P and Q is 3 : 4. Five years ago, the ratio of their ages was 5 : 7. Find their present ages.

Answer

As the ratio of their present ages is 3 : 4 , let their present ages be 3X and 4X.


So, 5 years ago, as the ratio of their ages was 5 : 7, we can write  (3x-5) : (4x-5) = 5 : 7. Solving, we get X = 10. Hence, their present ages are 3X = 30 and 4X = 40

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Subject: Problems on Ages

209 46822
Q:

The area of a square is 30.25 cm². Find its perimeter (in cm).

 

A) 44 B) 23
C) 22 D) 46
 
Answer & Explanation Answer: C) 22

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

0 46748
Q:

In how many ways can a group of 5 men and 2 women be made out of a total of 7 men and 3 women?

A) 135 B) 63
C) 125 D) 64
 
Answer & Explanation Answer: B) 63

Explanation:

Required number of ways = (7C5*3C2) = (7C2*3C1) = 63

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Filed Under: Permutations and Combinations

52 46594
Q:

30% of a number is 33. What is the number?

 

A) 120 B) 115
C) 105 D) 110
 
Answer & Explanation Answer: D) 110

Explanation:
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Filed Under: Percentage
Exam Prep: Bank Exams

3 46590
Q:

4 + (16) [-10 x 25 - 13 - 3 ÷ -5] = ?

 

A) 8 B) 9
C) 6 D) 7
 
Answer & Explanation Answer: D) 7

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

0 46578
Q:

ΔABC is right angled at B. If m∠C = 45 deg, then find the value of (cosecA - √3).

 

A) (4-√3)/2   B) √2-√3  
C) -√3/2 D) (√6-1)/√3
 
Answer & Explanation Answer: B) √2-√3  

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

0 46529