Aptitude and Reasoning Questions

Q:

The mean of marks secured by 55 students in division A of class X is 58, 45 students of division B is 54 and that of 75 students of division C is 52. Find the mean of marks of the students of three divisions of Class X.

A) 53.7 B) 54.4
C) 53 D) 55.8
 
Answer & Explanation Answer: B) 54.4

Explanation:
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Filed Under: Average
Exam Prep: Bank Exams

0 2067
Q:

If 3x= 4y= 12, then z is equal to

A) xy B) x + y
C) xy/x+Y D) 4x +3y
 
Answer & Explanation Answer: C) xy/x+Y

Explanation:
Taking log of all 3 we get
xln3 = yln4 =
zln12 = k
z = k/ln12 = k / ln(
3*4) = k/ln3 + ln4 = k / (k/x +k/y) = xy / (x+y)
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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

In the following question, select the odd word from the given alternatives.

A) Chennai B) Daman
C) Raipur D) Shimla
 
Answer & Explanation Answer: B) Daman

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

1 2067
Q:

If A = (-14 + 4) and B = 4 - 14, then AB = 

A) 0 B) -100
C) 100 D) -1
 
Answer & Explanation Answer: C) 100

Explanation:
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Exam Prep: Bank Exams

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Q:

Choose a figure which would most closely resemble the unfolded form of Figure (Z).

A) A B) B
C) C D) D
 
Answer & Explanation Answer: B) B

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Filed Under: Paper Cutting

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Q:

A person crosses a 900 metres wide road in 120 seconds. What is his speed (in km/hr)?

A) 24 B) 21
C) 36 D) 27
 
Answer & Explanation Answer: B) 21

Explanation:
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Filed Under: Time and Distance
Exam Prep: Bank Exams , CAT

6 2064
Q:

The sum of the ages of husband and wife at present is 100. Ten years ago the ratio of their ages was 9:7. What is the age of the husband?

A) 45 years B) 55 years
C) 65 years D) 40 years
 
Answer & Explanation Answer: B) 55 years

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

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Q:

(1 + sec 20° + cot 70°)(1 - cosec 20° + tan70°) is equal to

A) 0 B) 1
C) 2 D) 3
 
Answer & Explanation Answer: C) 2

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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