6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

A container contains 50 litres of milk. From that 8 litres of milk was taken out and replaced by water. This process was repeated further two times. How much milk is now contained by the container ?

A) 24.52 litres	B) 29.63 litres
C) 28.21 litres	D) 25.14 litres

Answer & Explanation Answer: B) 29.63 litres

Explanation:

Given that container has 50 litres of milk.

After replacing 8 litres of milk with water for three times, milk contained in the container is:

$\Rightarrow [50 {(1 - \frac{8}{50})}^{3}]$

$\Rightarrow (50 \times \frac{42}{50} \times \frac{42}{50} \times \frac{42}{50})$ = 29.63 litres.

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Filed Under: Alligation or Mixture
Exam Prep: CAT
Job Role: Bank PO

51 35091

Q:

A box contains 10 bulbs,of which just three are defective. If a random sample of five bulbs is drawn, find the probability that the sample contains exactly one defective bulb.

A) 5/12	B) 7/12
C) 3/14	D) 1/12

Answer & Explanation Answer: A) 5/12

Explanation:

Total number of elementary events = $10 C_{5}$

Number of ways of selecting exactly one defective bulb out of 3 and 4 non-defective out of 7 is $3 C_{1} * 7 C_{4}$

So,required probability = $3 C_{1} * 7 C_{4}$ / $10 C_{5}$ = 5/12.

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Filed Under: Probability

66 35003

Q:

In the following question, select the odd word from the given alternatives.

A) Ball	B) Bat
C) Wickets	D) Ground

Answer & Explanation Answer: D) Ground

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

0 34974

Q:

Based on the analogy given, find the missing number from the given options.

11 : 13 :: 17 : ___

A) 29	B) 21
C) 19	D) 23

Answer & Explanation Answer: D) 23

Explanation:

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

2 34972

Q:

A man buys Rs. 20 shares paying 9% dividend. The man wants to have an interest of 12% on his money. The market value of each share is:

A) 12	B) 15
C) 18	D) 20

Answer & Explanation Answer: B) 15

Explanation:

Dividend on Rs. 20 = Rs. (9/100)x 20 = Rs.9/5.

Rs. 12 is an income on Rs. 100.

Rs.9/5 is an income on Rs.[ (100/12) x (9/5)] = Rs. 15.

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Filed Under: Stocks and Shares

41 34952

Q:

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

(A) Fire (B) Light (C) Gas (D) Water

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

Answer & Explanation Answer: D) D

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

1 34897

Q:

What is the difference between the place value and face value of 3 in 273965

A) 2997	B) 2035
C) 0	D) 3962

Answer & Explanation Answer: A) 2997

Explanation:

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

2 34887

Q:

Find the curved surface area (in cm2) of a right circular cylinder of diameter 14 cm and height 8 cm.

A) 308	B) 352
C) 327	D) 371

Quantitative Aptitude - Arithmetic Ability Questions

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