6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

From a pack of 52 cards, 3 cards are drawn. What is the probability that one is ace, one is queen and one is jack?

A) 19/5525	B) 16/5525
C) 17/5525	D) 7/5525

Answer & Explanation Answer: B) 16/5525

Explanation:

Required probability:

$\frac{4 C_{1} * 4 C_{1} * 4 C_{1}}{52 C_{3}} = \frac{4 * 4 * 4}{22100} = \frac{16}{5525}$

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Filed Under: Probability

27 27384

Q:

The average weight of boys in a class is 30 kg and the average weight of girls in the same class is 20kg. If the average weight of the whole class is 23.25 kg, what could be the possible strength of boys and girls respectively in the same class?

A) 14 and 16	B) 13 and 27
C) 17 and 27	D) None of these

Answer & Explanation Answer: B) 13 and 27

Explanation:

Total no.of boys : no. of girls = 13:27

27 : 13

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Filed Under: Alligation or Mixture

69 27375

Q:

From which of the following quadrants does the line 7x + 12y = 16 will pass?

A) I and II	B) II and III
C) I, II, III	D) I, II, IV

Answer & Explanation Answer: D) I, II, IV

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

0 27350

Q:

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

A) Trouser – Garment	B) Ostrich – Bird
C) Table – Furniture	D) Stationery – Pen

Answer & Explanation Answer: D) Stationery – Pen

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

0 27330

Q:

What is the total number of circles passing through the two fixed points?

A) 1	B) 2
C) 4	D) Infinite

Answer & Explanation Answer: D) Infinite

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

0 27277

Q:

The difference between the compound interest and the simple interest on a certain sum at 12% p.a. for two years is Rs.90. What will be the value of the amount at the end of 3 years?

A) 8560	B) 8673
C) 8746	D) 8780.80

Answer & Explanation Answer: D) 8780.80

Explanation:

when interest is reckoned using compound interest, interest being compounded annually. The difference in the simple interest and compound interest for two years is on account of the interest paid on the first year's interest Hence 12% of simple interest = 90 => simple interest =90/0.12 =750.

As the simple interest for a year = 750 @ 12% p.a., the principal =750/0.12 = Rs.6250.

If the principal is 6250, then the amount outstanding at the end of 3 years = 6250 + 3(simple interest on 6250) + 3 (interest on simple interest) + 1 (interest on interest on interest) = 6250 +3(750) + 3(90) + 1(10.80) = 8780.80.

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

20 27275

Q:

A dealer sold two of his cattle for Rs. 500 each. On one of them he lost 10% on the other, he gained 10%. His gain or loss percent in the entire transaction was:

A) 10% loss	B) 1% loss
C) 1% gain	D) Neither loss nor profit

Answer & Explanation Answer: B) 1% loss

Explanation:

Loss%= (common gain or loss % / 10)² = (10/10)² % = 1%.

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Filed Under: Profit and Loss

56 27275

Q:

What percent decrease in salaries would exactly cancel out the 20 percent increase ?

A) (16 + 2/3) %	B) (15 + 2/3)%
C) (14 +1/3)%	D) (13 + 4/5)%

Quantitative Aptitude - Arithmetic Ability Questions

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