Quantitative Aptitude - Arithmetic Ability Questions

Q:

Find  two  natural  numbers  whose  sum  is  85 andtheleast common multiple is 102.

A) 30 & 55 B) 17 & 68
C) 35& 55 D) 51 & 34
 
Answer & Explanation Answer: D) 51 & 34

Explanation:

Let a + b = 85→b = 85 –a

LCM(a,b) =102→ab = 102

k→a(85 –a) = 102k, where k is a natural number.

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Filed Under: Numbers
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Q:

The length of one side and the diagonal of a rectangle are 5 cm and 13 cm respectively. Find its area (in cm2).

A) 60 B) 120
C) 35 D) 70
 
Answer & Explanation Answer: A) 60

Explanation:
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Filed Under: Area
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Q:

The area of a square is equal to its side, if the side is 1 unit.

A) Always B) Sometimes
C) Often D) Never
 
Answer & Explanation Answer: A) Always

Explanation:
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Filed Under: Area
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Q:

What is the value of tan 300°?

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

Explanation:
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Filed Under: Simplification
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Q:

A box consist of 5 rupees, 2 rupees and 1 rupee coins and their value are in the ratio of 15 : 4 : 2 respectively. If there are total 112 coins, then how many 2 rupees coins are there in the box?

A) 32 B) 48
C) 64 D) 24
 
Answer & Explanation Answer: A) 32

Explanation:
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Filed Under: Ratios and Proportions
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Q:

The line segment AB intersects the straight line CD at B; AB will be smallest when ∠ ABD (in degrees) is

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

Explanation:
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Filed Under: Volume and Surface Area
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Q:

A, B and C are employed to complete a work in Rs. 784. If A and B together complete 23/28 of the work. Calculate the wages (in Rs.) paid to C?

A) 280 B) 140
C) 70 D) 56
 
Answer & Explanation Answer: B) 140

Explanation:
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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

Deksha borrowed Rs. 500 at 5% per annum S.I. What amount (in Rs.) will she pay to clear her debt after 4 years?

A) 150 B) 650
C) 600 D) 100
 
Answer & Explanation Answer: C) 600

Explanation:
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Filed Under: Simple Interest
Exam Prep: Bank Exams

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