6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

The second day of a month is Sunday, What will be the last day of the next month which has 31 days ?

A) Friday	B) Saturday
C) Sunday	D) Can't be determined

Answer & Explanation Answer: D) Can't be determined

Explanation:

We cannot find out the answer because the number of days of the current month is not given.

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Filed Under: Calendar
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

55 23427

Q:

What is the value of (sin30° + 1/3) ?

A) (2√2+√3)/2	B) (√6+1)/√3
C) 7/3	D) 5/6

Answer & Explanation Answer: D) 5/6

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 23424

Q:

The length and breadth of a rectangle are 21 cm and 20 cm respectively. Find its area (in cm2).

A) 420	B) 840
C) 80	D) 160

Answer & Explanation Answer: A) 420

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

0 23411

Q:

If 8 men can reap 80 hectares in 24 days , then how many hectares can 36 men reap in 30 days?

A) 350	B) 400
C) 425	D) 450

Answer & Explanation Answer: D) 450

Explanation:

Let the required no of hectares be x. Then

More men, More hectares (Direct proportion)

More days, More hectares (Direct proportion)

$\begin{array}{r} \begin{matrix} M e n & 8 : 36 \end{matrix} \\ \begin{matrix} D a y s & 24 : 30 \end{matrix} \end{array}\} ⋮ ⋮ 80 : x$

=> ( 8 * 24 * x) = (36 * 30 * 80)

=> x= 450

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Filed Under: Chain Rule

32 23321

Q:

The area of a circle is 616 sq.cm. Find its radius (in cm).

A) 14	B) 28
C) 11	D) 22

Answer & Explanation Answer: A) 14

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

0 23300

Q:

In order to obtain an income of Rs. 650 from 10% stock at Rs. 96, one must make an investment of:

A) 3100	B) 6240
C) 6500	D) 9600

Answer & Explanation Answer: B) 6240

Explanation:

To obtain Rs. 10, investment = Rs. 96.

To obtain Rs. 650, investment = $R s . \frac{96 * 650}{10}$ = Rs. 6240.

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Filed Under: Stocks and Shares

21 23292

Q:

H.C.F of 4 x 27 x 3125, 8 x 9 x 25 x 7 and 16 x 81 x 5 x 11 x 49 is

A) 180	B) 360
C) 540	D) 1260

Answer & Explanation Answer: A) 180

Explanation:

$4 \times 27 \times 3125 = 2^{2} \times 3^{3} \times 5^{5}$

$8 \times 9 \times 25 \times 7 = 2^{3} \times 3^{2} \times 5^{2} \times 7$

$16 \times 81 \times 5 \times 11 \times 49 = 2^{4} \times 3^{4} \times 5 \times 7^{2} \times 11$

Therefore, H.C.F = $2^{2} \times 3^{2} \times 5$ = 180

$\inline \fn_jvn \therefore$ $\inline \fn_jvn H.C.F =2^{2}\times 3^{2}\times 5=180$

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Filed Under: HCF and LCM

75 23291

Q:

In some quantity of ghee, 60% is pure ghee and 40% is vanaspati. If 10 kg of pure ghee is added, then the strength of vanaspati ghee becomes 20%. The original quantity was :

A) 10 kg	B) 15 kg
C) 20 kg	D) 25 kg

Answer & Explanation Answer: A) 10 kg

Explanation:

Let the original quantity be x kg. Vanaspati ghee in x kg = (40x / 100 )kg = (2x / 5) kg.

Now, (2x/5)/(x + 10) = 20/100

=> 2x / (5x + 50) = 1/5

=> 5x = 50

=> x = 10.

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Filed Under: Percentage

54 23253

Quantitative Aptitude - Arithmetic Ability Questions

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