Aptitude and Reasoning Questions

Q:

Find the length of a train if it takes 10 seconds to cross a pole and double of this time to cross a platform of length 200 mts ?

A) 180 mts B) 190 mts
C) 200 mts D) 210 mts
 
Answer & Explanation Answer: C) 200 mts

Explanation:

Let the length of the train be 'L' mts

let the speed of the train be 'S' m/s

Given it crosses a pole in 10 sec=> L/S = 10 ......(1)
Given it takes 20 sec (double of pole) to cross a platform of length 200 mts

=> (L + 200)/S = 20

=> L/S + 200/S = 20

But from (1) L/S = 10

=> 200/S = 20 - 10

=> S = 20 m/s

Then, from (1)

=> L = 10 x 20 = 200 mts.

Hence, the length of the train = 200 mts.

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Filed Under: Problems on Trains
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Q:

Three of the following four are alike in a certain way and hence form a group. Which is the one that does not belong to that group?

A) Clove B) Cinnamon
C) Pepper D) Apricot
 
Answer & Explanation Answer: D) Apricot

Explanation:

An apricot is a fruit while others are spices.

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Filed Under: Classification

38 7758
Q:

Garden : Trowel : : Seamstress : ?

A) Scissors B) Sneakers
C) Crowbar D) Saw
 
Answer & Explanation Answer: A) Scissors

Explanation:

Second is the tool used by the first.

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Filed Under: Analogy
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19 7754
Q:

Please enter the Missing number: 4 8 14 22 ?

A) 28 B) 32
C) 46 D) 36
 
Answer & Explanation Answer: B) 32

Explanation:

Here the given series follows a pattern that,

2- 0 = 4  

3- 1 = 8  

4- 2 = 14

5- 3 = 22

6- 4 = 32

Hence, the missing number is 32

 

 

Method 2 ::

The difference between 4 and 8 is 4, the difference between 8 and 14 is 6, the difference between 14 and 22 is 8. So the next difference between 22 and the next number will be 10 since it follows (4,6,8,10 - add +2 each time)

Hence, 22 + 10 = 32 is the missing number.

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Filed Under: Odd Man Out
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8 7753
Q:

Porcupine : Rodent :: Mildew : ?

A) Insect B) Fungus
C) Pathogen D) Germ
 
Answer & Explanation Answer: B) Fungus

Explanation:

Porcupine is a rodent and mildew is a fungus.

Hence, Porcupine : Rodent :: Mildew : Fungus.

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Filed Under: Analogy
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Q:

A number is selected from the numbers 1,2,3,4.......25.The probability for it to be divisible by 4 or 7 is:

A) 3/25 B) 9/25
C) 1/25 D) None of these
 
Answer & Explanation Answer: B) 9/25

Explanation:

Total numbers = 25

 Numbers divisible by 4 or 7 are 4, 7, 8, 12, 14, 16, 20, 21, 24 = 9

 

 The probability (divisible by 4 or 7) = 9/25

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Filed Under: Probability

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Q:

Find the perimeter of the rectangle or square with the given dimensions l = 5 feet, w = 2 feet?

A) 11ft B) 13ft
C) 14ft D) 15ft
 
Answer & Explanation Answer: C) 14ft

Explanation:

We know that,

Perimeter of rectangle = 2(L+W) = 2(5 + 2) = 2 (7) = 14 fts.

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Filed Under: Area
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1 7748
Q:

If each vowel of the word WEBPAGE is substituted with the next letter of the English alphabetical series, and each consonant is substituted with the letter preceding it, which of the following letters will appear thrice?

A) G B) F
C) Q D) V
 
Answer & Explanation Answer: B) F

Explanation:

The Given word is WEBPAGE. After making required changes , we get the given word in the following form :

VFAOBFF.

Hence, the letter F will appear thrice.

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Filed Under: Alphabet Test

14 7742