Aptitude and Reasoning Questions

Q:

A train moves past a telegraph post and a bridge 264 m long in 8 seconds and 20 seconds respectively. What is the speed of the train ?

A) 69.5 km/hr B) 70 km/hr
C) 79 km/hr D) 79.2 km/hr
 
Answer & Explanation Answer: D) 79.2 km/hr

Explanation:

Let the length of the train be x metres and its speed by y m/sec.


Then, x/y = 8 => x = 8y


Now, (x+264)/20 = y
8y + 264 = 20y
y = 22.
Speed = 22 m/sec = (22*18/5) km/hr = 79.2 km/hr.

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Filed Under: Problems on Trains

61 19542
Q:

The following table shows the number of children in each house of a society.

What is the average number of children per house?

A) 1.52 B) 1.77
C) 2.02 D) 1.27
 
Answer & Explanation Answer: A) 1.52

Explanation:
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Filed Under: Table Charts
Exam Prep: Bank Exams

0 19535
Q:

Arrange the given words in the sequence in which they occur in the dictionary.
 
1. Brides
2. Boastful
3. Blizzard
4. Biology
5. Brilliant

A) 15234 B) 54321
C) 43215 D) 32145
 
Answer & Explanation Answer: C) 43215

Explanation:
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Filed Under: Logical Sequence of Words
Exam Prep: Bank Exams

0 19522
Q:

What is the number of squares in the following figure?

 

 

A) 4 B) 5
C) 8 D) 7
 
Answer & Explanation Answer: B) 5

Explanation:
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Filed Under: Image Analysis
Exam Prep: Bank Exams

0 19509
Q:

What should come at the place of question mark (?) in the following question?

437+216-413=?-234

A) 2.79 B) 5.01
C) 4.29 D) 6.36
 
Answer & Explanation Answer: B) 5.01

Explanation:

? = 4 + 85/4

 

? = 5.01

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0 19486
Q:

In the following question, some statements is followed by some conclusions, you have to take the given statements to be true even if they seem to be at variance with
commonly known facts and then decide which of the given logically follow. Choose that conclusion as the answer.

Statements:
Some roads are not good.
Some railways are good.
All airways are good.
Some roads are bad.

Conclusions:
I. At least some bad are good.
II. No bad is good.

A) Only conclusion I follow. B) Only conclusion II follow.
C) Either conclusion I or II follows. D) Neither conclusion I or II follows.
 
Answer & Explanation Answer: C) Either conclusion I or II follows.

Explanation:

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2 19477
Q:

The number of ways in which 8 distinct toys can be distributed among 5 children?

A) 5P8 B) 5^8
C) 8P5 D) 8^5
 
Answer & Explanation Answer: B) 5^8

Explanation:

As the toys are distinct and not identical,

For each of the 8 toys, we have three choices as to which child will receive the toy. Therefore, there are 58 ways to distribute the toys.

 

Hence, it is 58 and not 85.

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Filed Under: Permutations and Combinations
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE , TOEFL
Job Role: Analyst , Bank Clerk , Bank PO , IT Trainer

16 19470
Q:

Some boys are sitting in a row. P is sitting fourteenth from the left and Q is seventh from the right. If there are four boys between P and Q, how many boys are there in the row ?

A) 26 B) 24
C) 25 D) 22
 
Answer & Explanation Answer: C) 25

Explanation:

Number of boys in the row = number of boys uptil P + number of boys between P and Q + number of boys including Q and those behind Q = 14 + 4 + 7 = 25.

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Filed Under: Number, Ranking and Time Sequence Test
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk

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