6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If the value of a company stock drops from Rs. 25 per share to Rs. 21 per share, the percentage decrease per share is

A) 4	B) 8
C) 12	D) 16

Answer & Explanation Answer: D) 16

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

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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

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Q:

A train starts from a place A at 8:00 a.m. and arrives at another place B at 1:30 p.m. on the same day. If the speed of the train is 30 km/hr, then what will be the distance (in km) covered by the train?

A) 165	B) 175
C) 150	D) 135

Answer & Explanation Answer: A) 165

Explanation:

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Q:

A sum of 2,000, invested at the rate of 8.5% simple interest per annum for 6years will yield an interest of

A) Rs. 935	B) Rs. 1020
C) Rs. 510	D) Rs. 1275

Answer & Explanation Answer: B) Rs. 1020

Explanation:

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Filed Under: Simple Interest
Exam Prep: Bank Exams

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Q:

When $x^{2} + ax + b$ is divided by (x-1), the remainder is 15 and when $x^{2} + bx + a$ is divided by (x+1), the remainder is -1, then the value of $a^{2} + b^{2}$ is

A) 10	B) 20
C) 8	D) 16

Answer & Explanation Answer: A) 10

Explanation:

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Filed Under: Simplification
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Q:

Two labourers A and B are paid a total of Rs. 1120 per day. If A is paid 180 percent of what is paid to B, how much (in Rs) is B paid?

A) 400	B) 720
C) 500	D) 620

Answer & Explanation Answer: A) 400

Explanation:

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Q:

0 is the circumference of a triangle $∆ A B C$ . The point A and the chord BC are on the opposite side of O. If $∠ B O C = 150 °$ then the value of $∠ B A C$ is

A) 65°	B) 60°
C) 70°	D) 75°

Answer & Explanation Answer: D) 75°

Explanation:

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Q:

If (1/x) + (1/y) + (1/z) = 0 and x + y + z = 9, then what is the value of $x^{3} + y^{3} + z^{3} - 3 xyz$ ?

A) 81	B) 361
C) 729	D) 6561

Quantitative Aptitude - Arithmetic Ability Questions

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