6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

A wholesaler sells a watch to a retailer at a profit of 33% and the retailer sells it to a customer at a loss of 20%. If the customer pays Rs 2,181.2, what had it cost the wholesaler?

A) Rs 2050	B) Rs 2320
C) Rs 2712	D) Rs 1780

Answer & Explanation Answer: A) Rs 2050

Explanation:

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

4 2031

Q:

N is the smallest three digit prime number. When N is divided by 13, then what will be the remainder?

A) 8	B) 9
C) 7	D) 10

Answer & Explanation Answer: D) 10

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 2030

Q:

A tower stands on the top of a building which is 40 metres high. The angle of depression of a point situated on the ground from the top and bottom of the tower are found to be 60 and 45 deg respectively. What is the height (in metres) of tower?

A) 20√3	B) 30(√3 + 1)
C) 40(√3 – 1)	D) 50(√3 – 1)

Answer & Explanation Answer: C) 40(√3 – 1)

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Filed Under: Simplification
Exam Prep: Bank Exams

0 2029

Q:

The length of the diagonal of a square is 14 cm. What is area of this square?

A) 49 sq cm	B) 196 sq cm
C) 98 sq cm	D) 77 sq cm

Answer & Explanation Answer: C) 98 sq cm

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Filed Under: Area
Exam Prep: Bank Exams

1 2029

Q:

If 2x + (9/x) = 9, then what is the minimum value of $x^{2} + \frac{1}{x^{2}} = ?$

A) 95/36	B) 97/36
C) 87/25	D) 623/27

Answer & Explanation Answer: B) 97/36

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Filed Under: Simplification
Exam Prep: Bank Exams

0 2029

Q:

Two equal circles intersect such that each passes through the centre of the other. If the length of the common chord of the circles is 10√3 cm, then what is the diameter of the circle?

A) 10 cm	B) 15 cm
C) 20 cm	D) 30 cm

Answer & Explanation Answer: C) 20 cm

Explanation:

Let there be 2 circles with centre O1 and OAB is the common chord

Since both passes through the center of each other as shown in figure

So O1O is the radius of both

Let O1O = r = AO1= AO

AX = AB / 2 = 5√3 cm (since OX perpendicular to chord bisects it)

AOO1 forms an equilateral triangle with on side = radius = r

Sin 60 = √3/2 = AX / AO = 5√3/r

So r = 10 cm

So diameter = 20 cm

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Filed Under: Simplification
Exam Prep: Bank Exams

0 2029

Q:

The expression 52n –23n has a factor?

A) 3	B) 7
C) 17	D) None of the above

Answer & Explanation Answer: C) 17

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

3 2029

Q:

A sum fetched a total simple interest of Rs.5,400 at the rate of 12.5 %/yr in 4 years. What is the sum (in Rs)?

A) 11800	B) 12800
C) 9800	D) 10800

Quantitative Aptitude - Arithmetic Ability Questions

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