6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If a + b = 10 and ab = 24, then what is the value of $a^{3} + b^{3}$ ?

A) 280	B) 152
C) 140	D) 72

Answer & Explanation Answer: A) 280

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If ab = 21 and $\frac{{(a + b)}^{2}}{{(a - b)}^{2}} = \frac{25}{4}$ ,then the value of $a^{2} + b^{2} + 3 ab$

A) 115	B) 121
C) 125	D) 127

Answer & Explanation Answer: B) 121

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Filed Under: Simplification
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:

Vikram and Vivek can finish a work in 50 days. They worked together for 20 days and then left. How much work has been done by them?

A) 3/5	B) 1/3
C) 1/2	D) 2/5

Answer & Explanation Answer: D) 2/5

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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

A certain bank offers 8% rate of interest on the 1st year and 9% on the 2nd year in a certain fixed deposit scheme. If Rs 17,658 are received after investing for 2 years in this scheme, then what was the amount (in Rs) invested?

A) 16000	B) 15000
C) 15500	D) 16500

Answer & Explanation Answer: B) 15000

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Filed Under: Simple Interest
Exam Prep: Bank Exams

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Q:

In a right angled triangle if hypotenuse is 20 cm and ratio of other two sides is 4:3, the length of the sides are

A) 4 cm and 3 cm	B) 8 cm and 6 cm
C) 12 cm and 9 cm	D) 16 cm and 12 cm

Answer & Explanation Answer: D) 16 cm and 12 cm

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

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Q:

The sum of a fraction and 3 times its reciprocal is 19/4. What is the fraction?

A) 3/4	B) 4/3
C) 5/4	D) 4/5

Answer & Explanation Answer: A) 3/4

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

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Q:

If x/y = 4/9, then what is the value of $(7 x^{2} - 19 xy + 11 y^{2}) / y^{2}$ ?

A) 59/81	B) 100/27
C) 319/81	D) 913/81

Quantitative Aptitude - Arithmetic Ability Questions

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