6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If xy = 48 and $x^{2} + y^{2} = 100$ , then (x + y) is

A) 12	B) 16
C) 18	D) 14

Answer & Explanation Answer: D) 14

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

What number should be added to each of the numbers 35, 115, 53 and 165, so that the resulting numbers are in continued proportion?

A) 10	B) 12
C) 8	D) 6

Answer & Explanation Answer: A) 10

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

2 1758

Q:

Three categories of employees get wages in the ratio of 1 : 2 : 3. If they get increments of 5%, 10% and 15% respectively, what will be the new ratio of their wages?

A) 21 : 44 : 69	B) 7 : 22 : 23
C) 7 : 44 : 23	D) 21 : 22 : 23

Answer & Explanation Answer: A) 21 : 44 : 69

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

2 1758

Q:

In what ratio should coffee powder costing Rs 2500/kg be mixed with coffee powder costing Rs 1500/kg so that the cost of the mixture is Rs 2250/kg?

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

Answer & Explanation Answer: C) 3 : 1

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

8 1758

Q:

The perimeter of a rectangle whose length is 6 metre more than its breadth is 84 metre. What is the area of the triangle whose base is equal to the diagonal of the rectangle and height is equal to the length of the rectangle?

A) 360sq metre	B) 380 sq metre
C) 360 metre	D) 400 sq metre

Answer & Explanation Answer: A) 360sq metre

Explanation:

Let the breadth of rectangle be x m.

Then, the length of rectangle = (x+ 6) m

Perimeter of rectangle = 2 (x+x+ 6) m

Therefore, 2 (x+x+ 6) = 84 m

4x+ 12 = 84

4x= 84 –12
4x = 72/4 = 18
Therefore, length of rectangle = 18 + 6 = 24 m = height of triangle

Diagonal of rectangle = √(324+576) = 30 m = base of triangle

Therefore, are of triangle =1/2× base × height =1/2× 24 × 30 = 360 sq. m

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Filed Under: Area
Exam Prep: Bank Exams
Job Role: Bank PO , Bank Clerk

3 1757

Q:

The third proportional of two numbers 7 and 21 is

A) 35	B) 63
C) 42	D) 21

Answer & Explanation Answer: B) 63

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams , CAT

0 1755

Q:

If A/3 = B/2 = C/5, then what is the value of ratio ${(C + A)}^{2} : {(A + B)}^{2} : {(B + C)}^{2} ?$

A) 9 : 4 : 25	B) 25 : 4 : 9
C) 64 : 25 : 49	D) 49 : 25 : 64

Answer & Explanation Answer: C) 64 : 25 : 49

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If a person walks at 12 km/hr instead of 10 km/hr, he would have walked 1 km more in the same time. What is the actual distance (in kms) travelled by him at 10 km/hr in the same time?

A) 8	B) 10
C) 5	D) 12

Quantitative Aptitude - Arithmetic Ability Questions

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