6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If $\frac{a}{1 - 2 a} + \frac{b}{1 - 2 b} + \frac{c}{1 - 2 c} = \frac{1}{2}, then \frac{1}{1 - 2 a} + \frac{1}{1 - 2 b} + \frac{1}{1 - 2 c}$ value is

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

Answer & Explanation Answer: D) 4

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

0 1853

Q:

The areas of two similar triangles ΔABC and ΔPQR are 121 sq cms and 64 sq cms respectively. If PQ = 12 cm, what is the length (in cm) of AB?

A) 7.25	B) 6.25
C) 16.5	D) 5.25

Answer & Explanation Answer: C) 16.5

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

0 1853

Q:

If the shopkeeper sells an item at Rs 960 which is marked as Rs 1200, then what is the discount he is offering?

A) 25 percent	B) 12 percent
C) 20 percent	D) 28 percent

Answer & Explanation Answer: C) 20 percent

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Percentage
Exam Prep: Bank Exams

2 1852

Q:

The average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ratio of the number of boys to the number of girls in the class is:-

A) 1:2	B) 2:3
C) 3:4	D) 3:5

Answer & Explanation Answer: B) 2:3

Explanation:

Let the ratio be x : y
Total boys = 16.4 X x
Total girls = 15.4 X y
Total number of students in class = 16.4x + 15.4y
The average age of all students is 15.8
The total age of boys is 15.8x
The total age of girls is 15.8y
16.4x + 15.4y = 15.8x + 15.8y
0.6 x = 0.4 y
x/y = 0.4/0.6 = 2/3

Report Error

View Answer Report Error Discuss

Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

2 1852

Q:

In an army selection process, the ratio of selected to unselected was 6:1. If 90 less had applied and 30 less selected, the ratio of selected to unselected would have been 8:1. How many candidates had applied for the process?

A) 3150	B) 6300
C) 4725	D) 1575

Answer & Explanation Answer: D) 1575

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

2 1852

Q:

If A, B and C are denoting Mean, Median and Mode of a data and A : B = 9 : 8. Then the ratio of B : C is

A) 5:4	B) 8:9
C) 4:3	D) 7:6

Answer & Explanation Answer: C) 4:3

Explanation:

Report Error

View Answer Report Error Discuss

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

0 1852

Q:

If ${(a + \frac{1}{a})}^{2} = 3$ , then the value of $a^{3} + \frac{1}{a^{3}}$ is

A) 0	B) a
C) 1/a	D) 1

Answer & Explanation Answer: A) 0

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

0 1852

Q:

If a(x + y) = b(x - y) = 2ab, then the value of $2 (x^{2} + y^{2})$

A) 2(a2 - b2)	B) 2(a2 + b2)
C) 4(a2 - b2)	D) 4(a2 + b2)

Quantitative Aptitude - Arithmetic Ability Questions

Quick Links