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 Quantitative Aptitude - Arithmetic Ability Questions

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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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Q:

Select the odd letters from the given alternatives.

A) WVU B) QPO
C) GED D) LKJ
 
Answer & Explanation Answer: C) GED

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:

What is the value of sec 4π/3?

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

Explanation:
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Filed Under: Simplification
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Q:

If 4x + 3y = 11 and 3x + 2y = 8, then (x,y) is

A) 2, 0 B) 1, 6
C) 2, 1 D) 5, 6
 
Answer & Explanation Answer: C) 2, 1

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Q:

What percentage of 1 day is 18 minutes?

A) 7.5% B) 1.25%
C) 12.5% D) 1.8%
 
Answer & Explanation Answer: B) 1.25%

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Q:

What number, from the following should be deducted from 1184 to make it exactly divisible by 21?

A) 15 B) 12
C) 8 D) 7
 
Answer & Explanation Answer: C) 8

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Q:

Calculate the simple interest if Rs. 1800 is invested for 10 years at a rate of 5% per annum.

A) Rs. 900 B) Rs. 450
C) Rs. 1800 D) Rs. 2700
 
Answer & Explanation Answer: A) Rs. 900

Explanation:
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Filed Under: Simple Interest
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