6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Find the value of

$n + \frac{3 n}{2} + \frac{9 n}{4} + . . . . . . \infty$

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

Answer & Explanation Answer: D) infinity

Explanation:

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Filed Under: Simplification

4 70225

Q:

The average of two numbers is 10 and the product of two numbers is 96. Find the two numbers.

A) 3, 32	B) 12, 8
C) 1, 96	D) 24, 4

Answer & Explanation Answer: B) 12, 8

Explanation:

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Filed Under: Average
Exam Prep: Bank Exams

3 70024

Q:

Question :

What is the sum which earned interest ?

Statements :

a. The total simple interest was Rs. 9000 after 9 years.
b. The total of sum and simple interest was double of the sum after 6 years.

A) Only a is sufficient	B) Neither a nor b is sufficient
C) Only b is sufficient	D) Both a and b sufficient

Answer & Explanation Answer: D) Both a and b sufficient

Explanation:

Let the sum be Rs. x

a. gives, S.I = Rs. 9000 and time = 9 years.

b. gives, Sum + S.I for 6 years = 2 x Sum

--> Sum = S.I for 6 years.

Now, S.I for 9 years = Rs. 9000

S.I for 1 year = Rs. 9000/9 = Rs. 1000.

S.I for 6 years = Rs. (1000 x 6)= Rs. 6000.

--> x = Rs. 6000

Thus, both a and b are necessary to answer the question.

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Filed Under: Simple Interest
Exam Prep: GRE , GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

8 70012

Q:

Find the odd man out?

3, 12, 39, 120, 364

A) 364	B) 120
C) 39	D) 3

Answer & Explanation Answer: A) 364

Explanation:

The given number series is 3, 12, 39, 120, 364

$3 3 + 3^{2} = 3 + 9 = 12 12 + 3^{3} = 12 + 27 = 39 39 + 3^{4} = 39 + 81 = 120 120 + 3^{5} = 120 + 243 = 363 (Not 364)$

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Filed Under: Odd Man Out
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

7 69951

Q:

Find the dividend if the divisor is (x+2), quotient is (4x-5) and the remainder is 12.

A) 4x2+5x+2	B) 4x2+3x+2
C) 4x2-3x+2	D) 4x2+3x-2

Answer & Explanation Answer: B) 4x2+3x+2

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 69661

Q:

Simplify: (157 x 157 + 143 x 143)

A) 45098	B) 46098
C) 90196	D) 91196

Answer & Explanation Answer: A) 45098

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams , CAT

0 69509

Q:

If the diameter of a circle is 28 cm, then what will be its circumference (in cm)?

A) 88	B) 176
C) 35	D) 70

Answer & Explanation Answer: A) 88

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

0 69479

Q:

Solve the following :

(-4){19 - (-2) x (-8)} = ?

A) 12	B) -140
C) 140	D) -12

Quantitative Aptitude - Arithmetic Ability Questions

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