Aptitude and Reasoning Questions

Q:

The average marks obtained by a group of 10 students were 20. One student left the group as a result of which the average of the remaining students rose to 21. But another student joined, as a result of which the average marks of the group dropped a bit and became 20.6. What were the average marks obtained by the student who left and the one who joined?

 

A) 14 B) 15
C) 16 D) 23
 
Answer & Explanation Answer: A) 14

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

In a certain code language, 'x' represents '+', '÷' represents 'x', '-' represents '÷' and '+' represents '-'. Find out the answer to the following question.

 

18 - 2 + 20 x 10 ÷ 4 = ?

 

A) 11 B) 2
C) 29 D) 35
 
Answer & Explanation Answer: C) 29

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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

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Q:

What is the value of sin 330°?

A) 2 B) 2/√3
C) √2 D) -1/2
 
Answer & Explanation Answer: D) -1/2

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Sum of a fraction and thrice of its reciprocal is 73/20. What is the fraction?

A) 4/5 B) 9/4
C) 4/9 D) 5/4
 
Answer & Explanation Answer: D) 5/4

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Divide 20 into two parts such that the sum of the square of the parts is 232. What is the value of the two parts?

A) 6, 14 B) 8, 12
C) 4, 16 D) 10, 10
 
Answer & Explanation Answer: A) 6, 14

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Filed Under: Numbers
Exam Prep: Bank Exams , CAT

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Q:

Find the total surface area (in cm2 ) of a hemisphere of diameter 42 cm.

A) 4158 B) 5782
C) 6321 D) 7782
 
Answer & Explanation Answer: A) 4158

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

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Q:

A merchant marked cloth at Rs. 50/metre . He offers 2 successive discounts of 15% and 20%. The net price/metre is

A) Rs. 32.50 B) Rs. 42.50
C) Rs. 34.00 D) Rs. 40.00
 
Answer & Explanation Answer: C) Rs. 34.00

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

The area of a right angled triangle ABC, right angled at B, is 46 sq units. A median is drawn from A to BC which intersects at D. Find the area (in sq. units)of triangle ABD.

A) 12 B) 23
C) 46 D) 88
 
Answer & Explanation Answer: B) 23

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Filed Under: Area
Exam Prep: Bank Exams

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