Aptitude and Reasoning Questions

Q:

Ganesh, Ram and Sohan together can complete a work in 16 days. If Ganesh and Ram together can complete the same work in 24 days. The number of days Sohan alone takes, to finish the work is

A) 40 B) 48
C) 32 D) 30
 
Answer & Explanation Answer: B) 48

Explanation:
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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

The average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ratio of the number of boys to the number of girls in the class is:-

A) 1:2  B) 2:3
C) 3:4 D) 3:5
 
Answer & Explanation Answer: B) 2:3

Explanation:

Let the ratio be x : y
Total boys = 16.4 X x
Total girls = 15.4 X y
Total number of students in class = 16.4x + 15.4y
The average age of all students is 15.8
The total age of boys is 15.8x
The total age of girls is 15.8y
16.4x + 15.4y = 15.8x + 15.8y
0.6 x = 0.4 y
x/y = 0.4/0.6 = 2/3

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

Aditya got 78% marks in the examination. If he secured 663 marks, find the maximum marks.

A) 700 B) 800
C) 750 D) 850
 
Answer & Explanation Answer: D) 850

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

The value of 16 - [5 - 2{14 of 2 - (8 ÷ 4 x 2 - 1 + 3}] is

A) -12 B) -9
C) -10 D) -14
 
Answer & Explanation Answer: C) -10

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If x + y = 12 and x2 + y2 = 94, then xy is 

A) 25 B) 50
C) 144 D) 238
 
Answer & Explanation Answer: A) 25

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

ΔPQR is right angled at Q. QS is the altitude. PQ is 2√13 cm and PS is 8 cm. What is the length of SR?

A) 6√13 cm B) 4√13 cm
C) 18 cm D) 9 cm
 
Answer & Explanation Answer: C) 18 cm

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Filed Under: Area
Exam Prep: Bank Exams

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Q:

The ratio of the amount of work done by (x-1) labours in (x+1) days and that done by (x+1) labours in (x+2) days is 5 : 6. Then the value of x is

A) 16 B) 15
C) 17 D) 14
 
Answer & Explanation Answer: A) 16

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

The length of the two parallel sides of a trapezium are 16 m and 20 m respectively. If its height is 10 m, its area in square metres is

A) 360 B) 260
C) 240 D) 180
 
Answer & Explanation Answer: D) 180

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Filed Under: Area
Exam Prep: Bank Exams

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