6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

In an exam, the avarage marks obtained by John in English, Maths, Hindi and Drawing were 50. His average marks in Maths, Science, Social Studies and Craft were 70. If the average marks in all seven subjects is 58, his score in maths was

A) 50	B) 52
C) 60	D) 74

Answer & Explanation Answer: D) 74

Explanation:

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

There were 24 studentsina class. One of them, who was 18 years old, left the class and his place was filled up by a new comer.Ifthe average of the class was thereby lowered by 1 month, the age of new comer is-

A) 14 years	B) 15 years
C) 16 years	D) 17years

Answer & Explanation Answer: C) 16 years

Explanation:

Let the age of new comer be x

Avg age decrease by 1/12 year ⇒24 X 1/12 = 18 –x

⇒x=16 years

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

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Q:

ABCD is a cyclic quadrilateral $∠ D B A = 50 ° a n d ∠ A D E = 33 °, t h e n t h e m e a s u r e m e n t o f ∠ B C D i s$

A) 83°	B) 80°
C) 75°	D) 60°

Answer & Explanation Answer: A) 83°

Explanation:

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Filed Under: Quantitative Aptitude - Arithmetic Ability

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Q:

In the following question, select the odd letter/letters from the given alternatives.

A) OKGC	B) TPLH
C) XSOK	D) YUQM

Answer & Explanation Answer: C) XSOK

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

ax + 3y = 6 has slope -2/3. What is the value of a?

A) -2	B) 2
C) 3	D) -3

Answer & Explanation Answer: B) 2

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If the shopkeeper sells an item at Rs 4400 which is marked as Rs 5000, then what is the discount that he is offering?

A) 20%	B) 12%
C) 15%	D) 10%

Answer & Explanation Answer: B) 12%

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

If Cos θ = 35/37 , then what is the value of Cot θ?

A) 12/35	B) 35/12
C) 37/12	D) 12/37

Answer & Explanation Answer: B) 35/12

Explanation:

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Filed Under: Simplification
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Q:

If √[(1 + cosA)/2] = x, then find the value of x.

A) sin(A/2)	B) tan(A/2)
C) cot(A/2)	D) cos(A/2)

Quantitative Aptitude - Arithmetic Ability Questions

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