6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

When a number is divided by 138 the remainder is 26. What will be the remainder if the same number is divided by 23 ?

A) 4	B) 6
C) 3	D) 1

Answer & Explanation Answer: C) 3

Explanation:

Number = quotient x divisor + remainder;
so, here
number = 138 k + 26
=> (23 x 6k) + (23+3)
=> 23(6k+1)+3
so, remainder is 3.

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Filed Under: Numbers
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
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4 3550

Q:

In a bag, there are 8 red, 7 blue and 6 green flowers. One of the flower is picked up randomly. What is the probability that it is neither red nor green ?

$A) \frac{1}{3}$

$B) \frac{8}{21}$

$C) \frac{6}{21}$

$D) \frac{20}{21}$

A) Option A	B) Option B
C) Option C	D) Option D

Answer & Explanation Answer: A) Option A

Explanation:

Total number of flowers = (8+7+6) = 21.

Let E = event that the flower drawn is neither red nor green.

= event taht the flower drawn is blue.

--> n(E)= 7

--> P(E)= $\frac{7}{21}$ = $\frac{1}{3}$

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Filed Under: Permutations and Combinations
Exam Prep: GATE , CAT , Bank Exams
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8 3550

Q:

A sum of Rs. 2600 is lent out into two parts, one at 9% and another at 7% if the total annual income is Rs. 206, find the money lent at 7%.

A) Rs. 1400	B) Rs. 900
C) Rs. 1600	D) Rs. 1200

Answer & Explanation Answer: A) Rs. 1400

Explanation:

Money lent at 9% = x
Money lent at 7% = (2600 – x)
⇒ 9x/100 + (2600 – x) X 7 /100 = 206
⇒ 9x + 18200 – 7x = 20600
⇒ 2x = 2400
⇒ x = 1200
Money lent at 7% = 2600-1200 = 1400

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Filed Under: Percentage
Exam Prep: Bank Exams

0 3549

Q:

If $a^{3} + b^{3} = 341$ and ab = 30, then what is the value of a + b?

A) 1	B) 9
C) 7	D) 11

Answer & Explanation Answer: D) 11

Explanation:

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Filed Under: Simplification

6 3549

Q:

Calculate the effective interest rate of a 10% annual rate compounded continuously.

A) 9.52%	B) 10.52%
C) 11.52%	D) 12.52%

Answer & Explanation Answer: B) 10.52%

Explanation:

E=e^i-1

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Filed Under: Compound Interest
Exam Prep: Bank Exams
Job Role: Bank PO

0 3548

Q:

What amount must you invest now at 4% compounded monthly to accumulate $10,000 after 3 year

A) 8695	B) 7695
C) 3695	D) 4695

Answer & Explanation Answer: A) 8695

Explanation:

Given: j = 4%, m= 12, FV = $10,000, Term= 3.5 years
Then n =m *Term 12(3.5) 42

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Filed Under: Compound Interest
Exam Prep: Bank Exams
Job Role: Bank PO

0 3547

Q:

A man's annual income has increased by Rs 1.2 lakhs but the tax on income that he has to pay has reduced from 12% to 10%. He now pays the same amount of tax as before. What is his increased income (in Rs lakhs)?

A) 8.4	B) 7.2
C) 9.6	D) 6

Answer & Explanation Answer: B) 7.2

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

9 3544

Q:

A slice from a circular pizza of diameter 14 inches is cut in asuch a way that each slice of pizza has a central angle of 45°. What is the area of each slice of Pizza(in square inches)?

A) 16.25	B) 19.25
C) 18.25	D) 17.25

Quantitative Aptitude - Arithmetic Ability Questions

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