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

10 3157
Q:

To make a profit of 20% the selling price of the good is Rs. 240. The cost price of the good is,

A) Rs. 200 B) Rs. 210
C) Rs. 220 D) Rs. 230
 
Answer & Explanation Answer: A) Rs. 200

Explanation:
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Filed Under: Profit and Loss
Exam Prep: Bank Exams

3 3156
Q:

A bus starts running with the initial speed of 21 km/hr and its speed increases every hour by 3 km/hr. How many hours will it take to cover a distance of 252 km?

A) 3 B) 5
C) 8 D) 10
 
Answer & Explanation Answer: C) 8

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

3 3154
Q:

What is the fourth proportional to 189, 273 and 153?

A) 117 B) 299
C) 221 D) 187
 
Answer & Explanation Answer: C) 221

Explanation:
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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

4 3151
Q:

In a certain code language "GASTRIC" is written as "UCIREKT". How will "DECEIVE" be written in that code language?

A) ACBCCTG B) ACACCTG
C) EGFCGXK D) BFCCTGL
 
Answer & Explanation Answer: C) EGFCGXK

Explanation:
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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

1 3150
Q:

What is the LCM of 120 and 450?

A) 2400 B) 1800
C) 3600 D) 4800
 
Answer & Explanation Answer: B) 1800

Explanation:
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Filed Under: HCF and LCM
Exam Prep: Bank Exams

14 3149
Q:

Chord AB of a circle when extended meets the tangent to the circle at point P. PT is the tangent touching the circle at point T. If lengths of PT and PB are 6 cm and 4 cm respectively, what is the length of PA?

A) 12 cm B) 11 cm
C) 10 cm D) 9 cm
 
Answer & Explanation Answer: D) 9 cm

Explanation:
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Filed Under: Area
Exam Prep: AIEEE , Bank Exams , CAT

6 3149
Q:

The difference between two numbers is 25. The smaller number is 1/6th of the larger number. What is the value of the smaller number?

A) 10 B) 5
C) 50 D) 25
 
Answer & Explanation Answer: B) 5

Explanation:

Let the larger number be p

Then, smaller number = 1/6 x p = p/6

Given difference between two numbers = 25

p - p/6 = 25

5p/6 = 25

5p = 150

p = 30

Then, p/6 = 30/6 = 5

Hence, larger number = 30 and smaller number = 5 which makes the difference = 25.

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Filed Under: Problems on Numbers
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

3 3149