6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If cotA = x, then the value of x is

A) √(sec2A + 1)	B) √(cosec2A + 1)
C) √(sec2A - 1)	D) √(cosec2A - 1)

Answer & Explanation Answer: D) √(cosec2A - 1)

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1923

Q:

$What is the value of [\tan^{2} (90 - θ) - \sin^{2} (90 - θ)] {cosec}^{2} (90 - θ) \cot^{2} (90 - θ) ?$

A) 0	B) 1
C) -1	D) 2

Answer & Explanation Answer: B) 1

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1922

Q:

If x, y, z are the three factors of $a^{3} - 7 a - 6$ , then value of x+y+z will be

A) 3a	B) 3
C) 6	D) a

Answer & Explanation Answer: A) 3a

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0 1922

Q:

$\sec^{2} {Acosec}^{2} A$ is equal to

A) sec2A - cosec2A	B) √[sec2A + cosec2A]
C) sec2A + cosec2A	D) √[sec2A - cosec2A]

Answer & Explanation Answer: C) sec2A + cosec2A

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1921

Q:

If 5x + 6(3-2x) = 4, then what is the value of x?

A) 1	B) 2
C) 3	D) 4

Answer & Explanation Answer: B) 2

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0 1921

Q:

A box of sweets was distributed between A and B in the ratio 3 :4. If A got 36 sweets , what was the total no.of sweets

A) 12	B) 84
C) 144	D) 27

Answer & Explanation Answer: B) 84

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

0 1921

Q:

The average of 100 items was found to be 30 . If at the time of calculation , two items were wrongly taken as 32 and 12 instead of 23 and 11 , then the correct average is

A) 29.8	B) 29
C) 29.9	D) 29.5

Answer & Explanation Answer: C) 29.9

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Filed Under: Average
Exam Prep: Bank Exams

0 1921

Q:

The average age of 80 boys in a class is 15 years. The average age of a group of 15 boys in the class is 16 years and the average age of another 25 boys in the class is 14 years. What is the average age of the remaining boys in the class?

A) 15.25 years	B) 14 years
C) 14.75 years	D) Cannot be determined

Answer & Explanation Answer: A) 15.25 years

Explanation:

Total sum of age of 80 students of the class = 15 X 80 = 1200 years
15 students → 15 X 16 = 240 years
25 students → 25 X 14 = 350 years
Sum of 40 students = 590 years
Total age of remaining 40 students = 1200 – 590 = 610
So, average age = 15.25 years

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Filed Under: Average
Exam Prep: Bank Exams

0 1920

Quantitative Aptitude - Arithmetic Ability Questions

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