6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If $sinθ + cosecθ = 2, the value of \sin^{n} θ + {cosec}^{n} θ$ is

A) 2	B) 0
C) 1	D) 1/n

Answer & Explanation Answer: A) 2

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

3 1991

Q:

Select the odd word from the given alternatives.

A) Nylon	B) Wool
C) Silk	D) Cotton

Answer & Explanation Answer: A) Nylon

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

0 1990

Q:

If Sin x = 4/5, then Cosec x + Cot x =

A) 31/12	B) 35/12
C) 2	D) 1/2

Answer & Explanation Answer: C) 2

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Filed Under: Simplification
Exam Prep: Bank Exams

1 1990

Q:

The sum of length, breadth and height of a cuboid is 22 cm and the length of its diagonal is 14 cm.
What is the surface area of the cuboid?

A) 288 sq.cm	B) 216 sq.cm
C) 144 sq.cm	D) Cannot be determined due to insufficient data

Answer & Explanation Answer: A) 288 sq.cm

Explanation:

Let lengths, breadth and height of cuboid be l, b and h respectively

According to question

l+b+h = 22cm......(i)

and

√(l^2+b^2+h^2) = 14cm .....(ii)

Surface area of cuboid = 2(lb+bh+lh)

Squaring eq (i) gives

l^{2} + b^{2} + h^{2}

+ 2(lb+bh+lh) = 484

Substituting l^2+b^2+h^2 from eq (i)

2(lb+bh+lh) = 484 -196 = 288 sq.cm

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

0 1990

Q:

Solution A contains 10% acid and solution B contains 30% acid. In what ratio should solution A be mixed with Solution B to obtain a mixture with 25% acid?

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

Answer & Explanation Answer: C) 1 : 3

Explanation:

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

3 1990

Q:

In a class of 60 students there are 33 girls. The average weight of these girls is 62 Kg and average weight of the full class is 66.5 kg. What is the average weight of the boys of the class?

A) 72 kg	B) 71 kg
C) 70 kg	D) 73 kg

Answer & Explanation Answer: A) 72 kg

Explanation:

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Filed Under: Average
Exam Prep: Bank Exams

3 1989

Q:

$∆$ ABC is right angled at B. If m∠A = 30°., then Sec C =?

A) 1/2	B) 1/√2
C) 2	D) 1/√3

Answer & Explanation Answer: C) 2

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1989

Q:

If P : Q : R = 2 : 3 : 5, then what is the value of (P + Q) : (Q + R) : (R + P)?

A) 5:8:7	B) 2:3:5
C) 5:8:10	D) 4:9:25

Quantitative Aptitude - Arithmetic Ability Questions

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