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:

Select the odd word/letters/number/number pair from the given alternatives.

A) Veena B) Guitar
C) Violin D) Flute
 
Answer & Explanation Answer: D) Flute

Explanation:
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Filed Under: Odd Man Out
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Q:

Select the odd word/letters/number/number pair from the given alternatives.

A) Serious B) Severe
C) Harsh D) Deceptive
 
Answer & Explanation Answer: D) Deceptive

Explanation:
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Q:

A bank offers 5% compound interest per half year. A customer deposits Rs 4800 each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest?

A) Rs 732 B) Rs 1464
C) Rs 366 D) Rs 183
 
Answer & Explanation Answer: A) Rs 732

Explanation:
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Filed Under: Compound Interest
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Q:

Simplify (b2x 3a2z4 ) × (b2x 4a4z3 )/(a3b2z4 )

A) b2x7a3z3 B) b3x7a3 z3
C) b2x5a3 z3 D) b2x7a3z2
 
Answer & Explanation Answer: A) b2x7a3z3

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Filed Under: Simplification
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Q:

The bus fare between two cities is increased in the ratio 1:2. Find the increase in the fare, if the original fare is Rs. 175.

A) Rs 350 B) Rs 70
C) Rs 140 D) Rs 175
 
Answer & Explanation Answer: D) Rs 175

Explanation:
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Filed Under: Ratios and Proportions
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Q:

What number should be added to each of 4, 16, 18 and 58 so that the resulting numbers will be in proportion in the given order?

A) 2 B) 3
C) 4 D) 1
 
Answer & Explanation Answer: A) 2

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Q:

If 2(5x - ­4) -­ 2 < 2x ­- 1 < 4x - ­2; then the value of x is

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

Explanation:
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Filed Under: Simplification
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