Aptitude and Reasoning Questions

Q:

A group consists of 4 couples in which each of the 4 boys have one girl friend.In how many ways they can be arranged in a straight line such that boys and girls occupies alternate positions?

Answer

Answer : 1152


 


Total positions are 8.


In that boys can be arranged in 4 places and girls can be arranged in 4 places and hence this can be done in 2 ways.


i.e => 4! x 4! x 2 = 24 x 24 x 2=1152.

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Subject: Permutations and Combinations Exam Prep: CAT
Job Role: Bank PO

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Q:

If 18th October 2011 was a Sunday, then what day of the week was it on 19th September 2012?

A) Thursday B) Friday
C) Sunday D) Monday
 
Answer & Explanation Answer: D) Monday

Explanation:
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Filed Under: Calendar
Exam Prep: Bank Exams

21 2643
Q:

Find the area of the trapezium, whose parallel sides are 12 cm and 10 cm, and distance between the parallel sides is 14 cm?

A) 121 sq.com B) 154 sq.com
C) 186 sq.com D) 164 sq.com
 
Answer & Explanation Answer: B) 154 sq.com

Explanation:

We know that, 

Area of trapezium = 1/2 x (Sum of parallel sides) x (Distance between Parallel sides)

= 1/2 x (12 + 10) x 14

= 22 x 14/2

= 22 x 7

= 154 sq. cm

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Filed Under: Area
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

23 2642
Q:

Statement: There is a substantial increase in the number of accidents causing deaths and severe injuries due to malfunctioning of the traffic signals.
Course of action:
a. The traffic police should immediately post traffic personnel at the junctions.
b. The signal system should immediately be repaired or replaced.

A) Only a follows B) Either a or b follows
C) Only b follows D) Neither a nor b follows
 
Answer & Explanation Answer: B) Either a or b follows

Explanation:

Clearly, either the traffic signals should be made to function properly or traffic personnel should be deployed to guide vehicular movement in the right way. So either I or II follows.

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Q:

Choose the word which is least like the others word in a group?

A) Burrow B) Roof
C) Den D) Nest
 
Answer & Explanation Answer: B) Roof

Explanation:

All except roof are dwelling places of different animals.

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Filed Under: Classification

23 2641
Q:

Working together A, B and C can complete a task in 12 days. A and B can do the task in 55 days and 66 days respectively if they worked alone. In how many days can C do the task if he worked alone?

A) 22 B) 44
C) 20 D) 40
 
Answer & Explanation Answer: C) 20

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

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Q:

The binary system uses powers of

A) 0 B) 1
C) 2 D) None of the above
 
Answer & Explanation Answer: C) 2

Explanation:

Binary system is what the representation uses only two digits 0 & 1.

It uses only the powers of 2.

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Filed Under: Arithmetical Reasoning
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

3 2639
Q:

If N = 1 + 11 + 111 + 1111 + ... +111111111, then what is the sum of the digit's of N?

A) 45 B) 18
C) 36 D) 5
 
Answer & Explanation Answer: A) 45

Explanation:
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Filed Under: Numbers
Exam Prep: Bank Exams

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