6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

The marked price of a book is Rs 4200. The shopkeeper gives two successive discounts of 25% and y% to the customer. If the customer pays Rs 2898 for the book, then what is the value (in percentage) of y?

A) 7	B) 8
C) 6	D) 5

Answer & Explanation Answer: B) 8

Explanation:

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Filed Under: Percentage
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Q:

If $x = {at}^{2}$ and y = 2at then

A) x2 = 4ay	B) y2 = 4ax
C) x2 + y 2 = a2	D) x 2 - y2 = a 2

Answer & Explanation Answer: B) y2 = 4ax

Explanation:

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Q:

If (4x - 3) - (2x + 1) = 4, then the value of x is

A) 0	B) 1
C) 2	D) 3

Answer & Explanation Answer: C) 2

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Q:

If cot(A/2) = x, then x is equal to

A) tanA/(1 + secA)	B) 1/(secA + cotA)
C) tanA/(1 + cosecA)	D) 1/(cosecA - cotA)

Answer & Explanation Answer: D) 1/(cosecA - cotA)

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Q:

The third proportional of two numbers 4 and 28 is _______.

A) 52	B) 56
C) 84	D) 196

Answer & Explanation Answer: D) 196

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

Simplify : ${(13)}^{2} - {(14)}^{2} + {(17)}^{2} - 250 = \sqrt{?}$

A) 196	B) 169
C) 121	D) 144

Answer & Explanation Answer: D) 144

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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:

A contractor has got two orders A and B. On one (A) he spends Rs. 25,000 and makes a bill of Rs. 30,500. On the other (B) he makes a bill keeping a profit of 20%. Which of the two orders is more profitable to him?

A) B	B) A
C) A nor B	D) None of the above

Quantitative Aptitude - Arithmetic Ability Questions

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