6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

In ΔDEF, G and H are points on side DE and DF respectively. GH is parallel to EF. If G divides DE in the ratio 1:3 and HF is 7.2 cm, find length of DF?

A) 2.4 cm	B) 4.8 cm
C) 3.6 cm	D) 9.6 cm

Answer & Explanation Answer: D) 9.6 cm

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

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Q:

In a class, average height of all students is 'a' cms. Among them, average height of 10 students is 'b' cms and the average height of the remaining students is 'c' cms. Find the number of students in the class. (Here a>c and b>c )

A) (a(b-c))/(a-c)	B) ((b-c)/(a-c))
C) ((b-c)/10(a-c))	D) (10(b-c))/(a_c))

Answer & Explanation Answer: D) (10(b-c))/(a_c))

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Filed Under: Quantitative Aptitude - Arithmetic Ability

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Q:

The ratio of present ages of Rasika and Shami is 7:5. After 17 years the ratio of their ages will be 12:11. What is Rasika's present age?

A) 5	B) 80
C) 16	D) 7

Answer & Explanation Answer: D) 7

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

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Q:

In the question given below, two equations are provided. Solve the equations and establish the relationship between x and y

$I . 2 x^{2} - 13 x - 189 = 0 II . 2 y^{2} - 3 y - 189 = 0$

A) x>y	B) x≥y
C) x<y	D) x≤y

Answer & Explanation Answer:

Explanation:

I. 2x2 - 13x - 189 = 0 2x2 - 27x + 14x - 189 = 0 x(2x - 27) + 7(2x - 27) = 0 x = -7, 27/2

II. 2y2 - 3y - 189 = 0 2y2 - 21y + 18y - 189 = 0 y(2y - 21) + 9(2y - 21) = 0 y = -9, 21/2

When x, as well as y, have both positive and negative values then no relationship can be established between them because if we consider x to be positive then the negative value of y will be lesser than x. If we consider x to be negative then positive value of y will be greater than x.

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Filed Under: Simplification

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Q:

What should be the average speed of a car to cover a distance of 189 km in 3.5 hours?

A) 15 m/s	B) 54 m/s
C) 27 m/s	D) 30 m/s

Answer & Explanation Answer: A) 15 m/s

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Filed Under: Time and Distance
Exam Prep: Bank Exams

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Q:

Two cycles start from a house with a speed of 24kmph at interval of 15 min. With how much more speed in kmph the woman coming from the opposite direction towards the house has to travel to meet the cycles at an interval of 10 minutes?

A) 13	B) 11
C) 12	D) 14

Answer & Explanation Answer: C) 12

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Filed Under: Time and Distance
Exam Prep: Bank Exams

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Q:

Manish is four times as efficient as Puneet. Manish takes 90 days less than Puneet to complete a book. If both of them work together, then in how many days the book will be completed?

A) 28	B) 25
C) 24	D) 30

Answer & Explanation Answer: C) 24

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Filed Under: Time and Work
Exam Prep: Bank Exams , CAT

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Q:

A vendor buys some bananas at the rate of 2 for Re 1 and sells at the rate of 10 for Rs 7. What will be the result?

A) 40 percent loss	B) 28.57 percent gain
C) 40 percent gain	D) 28.5 percent loss

Quantitative Aptitude - Arithmetic Ability Questions

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