Quantitative Aptitude - Arithmetic Ability Questions

Q:

What is that least number that must be added to the product 684 × 686 to make it a perfect square?

A) 685 B) 1
C) 684 D) 686
 
Answer & Explanation Answer: B) 1

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Filed Under: Problems on Numbers
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Q:

What is the reflection of the point (2, 3) in the line y = 4?

A) (2, 5) B) (2, -5)
C) (-2, -5) D) (-2, 5)
 
Answer & Explanation Answer: A) (2, 5)

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Filed Under: Simplification
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Q:

Two men are on opposite sides of a tower. They measure the angles of elevation of the top of the tower as 30 ̊ and 45 ̊ respectively. If the height of the tower is 50 m, the distance between the two men is (Take √3 = 1.73)

A) 136.5 m B) 50 √3 m
C) 100 √3 m D) 135.5 m
 
Answer & Explanation Answer: A) 136.5 m

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Filed Under: Height and Distance
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Q:

Find the odd word/letters/number pair from the given alternatives

A) 1 : 8 B) 27 : 64
C) 125 : 218 D) 323 : 512
 
Answer & Explanation Answer: C) 125 : 218

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

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

A) 17 B) 23
C) 29 D) 33
 
Answer & Explanation Answer: D) 33

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Filed Under: Odd Man Out
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Q:

Find two numbers such that their mean proportion is 12 and third proportion is 768.

A) 3 and 24 B) 3 and 48
C) 6 and 48 D) 6 and 24
 
Answer & Explanation Answer: B) 3 and 48

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

Two numbers are in the ratio 5:6 when 6 is added to each, the ratio becomes 7:8 then the numbers are

A) 10 & 12 B) 20 & 24
C) 15 & 18 D) 5 & 6
 
Answer & Explanation Answer: C) 15 & 18

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

19 personswentto a hotel for a combineddinner party. 13 of them spent Rs 79 each on their dinner and the rest spent Rs 4 more than the average expenditure of all the 19. What was the total money spent by them?

A) 1628.4 B) 1534
C) 1492 D) None of these
 
Answer & Explanation Answer: D) None of these

Explanation:

Let the average expenditure of 19 people be x

⇒19x = 13 X 79 + 6 X (x+4)⇒19x = 13 X 79 + 6x +24

⇒x = 80.84

So, total money spent by them = 1536.07

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Filed Under: Average
Exam Prep: Bank Exams

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