Quantitative Aptitude - Arithmetic Ability Questions

Q:

A can do a certain job in 12 days. B is 60% more efficient than A. Then B can do the same piece of work in

A) 8 days B) 7.5 days
C) 6.4 days D) 5.5 days
 
Answer & Explanation Answer: B) 7.5 days

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Filed Under: Time and Work
Exam Prep: Bank Exams

3 1572
Q:

Find the third proportional to 6 and 12.

A) 18 B) 9
C) 24 D) 15
 
Answer & Explanation Answer: C) 24

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

4 1570
Q:

Excluding stoppages, the speed of a train is 120 kmph and including stoppages, it is 50 kmph. For how many minutes does the train stop per hour?

A) 25 B) 40
C) 35 D) 20
 
Answer & Explanation Answer: C) 35

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Filed Under: Problems on Trains
Exam Prep: Bank Exams

12 1568
Q:

If the least common multiple of two numbers, 1728 and K is 5184, then how many values of K are possible?

A) 11 B) 8
C) 6 D) 7
 
Answer & Explanation Answer: D) 7

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

1 1566
Q:

Radius of base of a hollow cone is 8 cm and its height is 15 cm. A sphere of largest radius is put inside the cone. What is the ratio of radius of base of cone to the radius of sphere?

A) 5 : 3 B) 4 : 1
C) 2 : 1 D) 7 : 3
 
Answer & Explanation Answer: A) 5 : 3

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

6 1565
Q:

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

A) POR B) MEF
C) TUD D) STD
 
Answer & Explanation Answer: D) STD

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Filed Under: Odd Man Out
Exam Prep: Bank Exams , CAT

2 1565
Q:

The average age of Hari, his wife and their two children is 23 years. His wife is just 4 years younger than Hari and his wife was 20 years old when their daughter was born. He was 28 years old when their son was born. What is the sum of the age of Hari and his daughter is?

A) 53 years B) 55 years
C) 56 years D) 50 years
 
Answer & Explanation Answer: D) 50 years

Explanation:
H+W+S+D/4 = 23
H= W+4

D =W-20 = H-24

S = H-28

H+H-4+H-24+H-28/4 = 23

H =37 D =13

H + D = 50

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

1 1564
Q:

If the product of two numbers is 3026 and their LCM is 89, then their HCF is :

A) 33 B) 34
C) 35 D) 29
 
Answer & Explanation Answer: B) 34

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Filed Under: HCF and LCM
Exam Prep: Bank Exams

6 1563