6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

P, Q and R together can make a table in 40 minutes. P and Q together can make it in 60 minutes. How much time (in minutes) will R alone take to make the table?

A) 100	B) 120
C) 90	D) 150

Answer & Explanation Answer: B) 120

Explanation:

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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

In each of these questions, a question is given followed by information in three statements. You have to find out the data in which statement(s) is sufficient to answer the question and mark your answer accordingly. What are the marks scored by Abhijit in English?

I. Marks scored by Abhijit in Maths are more than his marks in Science by 20.

II. Total marks scored by Abhijit in Maths, Science and English are 198.

III. Marks scored by Abhijit in Science are more than his marks in English by 12.

A) Any two of the three	B) Only II and III
C) All I, II and III	D) Question cannot be answered even with the information in all the three statements

Answer & Explanation Answer: C) All I, II and III

Explanation:

Suppose marked scored by Abhijit in English = x
From statement I,
Marks in science = x + 12
From statement III,
Marks in mathematics = x + 12 + 20
= x + 32
From statement II,
English + Science + Mathematics = 198
x + x +12 + x + 38 = 198
3x = 154
x = 154/3
All I, II and III are required to find answer.

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams , GATE
Job Role: Bank Clerk , Bank PO

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Q:

The mean of 100 observations was calculated as 40. It was found later on that one of the observations was misread as 83 instead of 53. The correct mean is:

A) 39	B) 39.7
C) 40.3	D) 42.7

Answer & Explanation Answer: B) 39.7

Explanation:

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

A sum of Rs 125 is divided among u, v and w in such a way that u gets Rs 10 more than v and v gets Rs 5 more than w. What is the ratio of their shares?

A) 2 : 10 : 9	B) 10 : 8 : 7
C) 13 : 10 : 7	D) 5 : 4 : 3

Answer & Explanation Answer: B) 10 : 8 : 7

Explanation:

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

The curved surface area and the slant height of a right circular cone are 99 sq.cm and 9 cm respectively. Find its diameter (in cm)

A) 3.5	B) 7
C) 14	D) 10.5

Answer & Explanation Answer: B) 7

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

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Q:

The value of $(d^{s + t} \div d^{s}) \div d^{t}$

A) 0	B) d
C) 1	D) ds+t

Answer & Explanation Answer: C) 1

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

What is the value of $\tan (\frac{π}{4} + A) \times \tan (\frac{3 π}{4} + A) ?$

A) 1	B) 0
C) cot A/2	D) – 1

Answer & Explanation Answer: D) – 1

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Filed Under: Simplification
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Q:

What is the value of tan3A?

A) (3tanA - tan3A)/(1 - 3tan2A)	B) (3tanA + tan3A)/(1 + 3tan2A)
C) (3tanA - tan3A)/(1 + 3tan2A)	D) (3tanA + tan3A)/(1- 3tan2A)

Quantitative Aptitude - Arithmetic Ability Questions

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