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Quantitative Aptitude - Arithmetic Ability

Quantitative Aptitude - Arithmetic Ability Questions

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Which of the following value of 'x' satisfies the equation $81^{4 x + 4} = 243^{2 x + 8}$ ?

A) 3	B) 4
C) 5	D) 6

A) 3

B) 4

C) 5

D) 6

Answer & Explanation Answer: B) 4

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Filed Under: Simplification
Exam Prep: Bank Exams , CAT

0 1339

A discount of 45% on an article is equal to the discount of 65% on other article. What is the respective ratio of the marked price of both the articles?

A) 5 : 9	B) 3 : 4
C) 7 : 12	D) 13 : 9

A) 5 : 9

B) 3 : 4

C) 7 : 12

D) 13 : 9

Answer & Explanation Answer: D) 13 : 9

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

4 1338

The value of $\sqrt{- \sqrt{3 +} \sqrt{3 + 8 \sqrt{7 + 4 \sqrt{3}}}}$ is

A) 2	B) 4
C) ±2	D) -2

A) 2

B) 4

C) ±2

D) -2

Answer & Explanation Answer: A) 2

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Filed Under: Quantitative Aptitude - Arithmetic Ability

0 1338

How much does one need to add to 2/3 to obtain 3/2?

A) 5/6	B) 1.5/6
C) 1/-1	D) 4/9

A) 5/6

B) 1.5/6

C) 1/-1

D) 4/9

Answer & Explanation Answer: C) 1/-1

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Filed Under: Decimal Fractions
Exam Prep: Bank Exams

2 1338

If $\frac{2 p}{p^{2} - 2 p + 1} = \frac{1}{4}$ , then the value of (p + 1/p) will be

A) 8	B) 10
C) 12	D) None of these

A) 8

B) 10

C) 12

D) None of these

Answer & Explanation Answer: B) 10

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Filed Under: Quantitative Aptitude - Arithmetic Ability

0 1337

At 5% simple interest per annum a certain sum yields a total amount of Rs. 2,790 at the end of 3 1/4 years. The sum invested was

A) Rs. 2350	B) Rs. 2400
C) Rs. 2600	D) Rs. 2550

A) Rs. 2350

B) Rs. 2400

C) Rs. 2600

D) Rs. 2550

Answer & Explanation Answer: B) Rs. 2400

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Filed Under: Simple Interest
Exam Prep: Bank Exams

5 1337

When [x + (1/x)] = 5, then what is the value of [x – (1/x)]?

A) 11	B) ± √22
C) 21	D) ± √21

A) 11

B) ± √22

C) 21

D) ± √21

Answer & Explanation Answer: D) ± √21

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1337

Out of two numbers, 30% of the smaller number is equal to 18% of the larger number. If the sum of the two numbers is 840, then what is the value of the larger number?