6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

A number when divided by 779 gives a remainder 47. By dividing the same number by 19, what would be the remainder?

Answer

Number = ( 779 x a) + 47, where "a" is the quotient

= (19 x 41 x a) + (19 x 2) + 9

= 19 x (41a + 2) + 9

= 19 x (New quotient) + 9

$\inline \fn_jvn \therefore$ Required remainder = 9

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Subject: Numbers

26 16457

Q:

The simple interest on Rs.10 for 4 months at the rate of 3 paise per month is

A) 0.3 Paise	B) 1.2 Paise
C) 30 Paise	D) 3 Paise

Answer & Explanation Answer: B) 1.2 Paise

Explanation:

Given Principal amount P = Rs. 10

Time T = 4 months

Rate of interest R = 3 ps

Interest I = PTR/100 = (10 x 4 x 3)/100 = 12/10 = 1.2 paise.

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Filed Under: Simple Interest
Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: IT Trainer , Database Administration , Bank PO , Bank Clerk , Analyst

7 16445

Q:

The cube root of .000216 is:

A) .6	B) .06
C) 77	D) 87

Answer & Explanation Answer: B) .06

Explanation:

${(. 000216)}^{\frac{1}{3}} = {(\frac{216}{10^{6}})}^{\frac{1}{3}} = {[\frac{6 * 6 * 6}{10^{2} * 10^{2} * 10^{2}}]}^{\frac{1}{3}} = [\frac{6}{10^{2}}] = 0.06$

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Filed Under: Square Roots and Cube Roots

72 16438

Q:

Read the data given below and answer the questions based on it.

In the CBSE Board exams last year, 53% passed in Biology, 61% percent passed in English, 60% in Social studies, 24% in Biology and English, 35% in English and social studies, 27% in Biology and social studies and 5% in none.

What is the percentage of students who passed in all subjects?

A) 8	B) 12
C) 7	D) 10

Answer & Explanation Answer: C) 7

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

4 16438

Q:

Mother’s age today is thrice as her daughter’s. After 10 years it would be just double. How old is the daughter today ?

A) 8 years	B) 9 years
C) 10 years	D) 11 years

Answer & Explanation Answer: C) 10 years

Explanation:

Let the age of the daughter today be ‘x’ years.
Mother’s age today = 3x years
After 10 years, we have
3x + 10 = 2(x + 10)
x = 10 years.

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Filed Under: Problems on Ages
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Analyst , Bank Clerk , Bank PO

20 16431

Q:

Direction: What should come in the place of question mark (?) in the following number series?

9, 11, 16, 26, ?, 69

A) 31	B) 38
C) 43	D) 45

Answer & Explanation Answer: C) 43

Explanation:

Double Difference pattern is followed in the above series. +2, +5, + 10, +17, +26

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Filed Under: Numbers
Exam Prep: AIEEE , Bank Exams , GATE

1 16408

Q:

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

(A) Barbarous

(B) Uncivilized

(C) Gentle

(D) Wild

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

Answer & Explanation Answer: C) C

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

0 16401

Q:

The perimeters of two squares are 40cm and 32 cm. Find the perimeter of a third square whose area is equal to the difference of the areas of the two squares.

A) 12	B) 24
C) 36	D) 48

Answer & Explanation Answer: B) 24

Explanation:

side of first square = 40/4 =10cm

side of second square = 32/4 = 8cm

area of third squre = 10² - 8² = 36 sq cm

side of third square = $\sqrt{36}$ = 6 cm

required perimeter = 6*4 = 24cm

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Filed Under: Area
Exam Prep: Bank Exams
Job Role: Bank PO

8 16328

Quantitative Aptitude - Arithmetic Ability Questions

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