Aptitude and Reasoning Questions

Q:

A train covers 180 km distance in 5 hours. Another train covers the same distance in 1 hour less. What is the difference in the distances covered by these trains in one hour if they are moving in the same direction?

A) 15 kms B) 9 kms
C) 6 kms D) 18 kms
 
Answer & Explanation Answer: B) 9 kms

Explanation:

The first train covers 180 kms in 5 hrs

=> Speed = 180/5 = 36 kmph

Now the second train covers the same distance in 1 hour less than the first train => 4 hrs

=> Speed of the second train = 180/4 = 45 kmph

Now, required difference in distance in 1 hour = 45 - 36 = 9 kms.

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Filed Under: Time and Distance
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11 8891
Q:

P, Q, R, S, T and U are six consecutive odd numbers and their average is 52. What is the product of P and U ?

A) 2212 B) 2154
C) 2349 D) 2679
 
Answer & Explanation Answer: D) 2679

Explanation:

Let x, x+2, x+4, x+6, x+8 and x+10 are six consecutive odd numbers.

Given that their average is 52

Then, x + x+2 + x+4 + x+6 + x+8 + x+10 = 52×6

6x + 30 = 312

x = 47

So Product = 47 × 57 = 2679

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Filed Under: Average
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22 8882
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 8875
Q:

Chromite : Chromium : : Ilmenite :?

A) Cobalt B) Titanium
C) Limestone D) Manganese
 
Answer & Explanation Answer: B) Titanium

Explanation:

Chromite is a mineral of chromium and ilmenite is a mineral of titanium

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Filed Under: Analogy
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17 8874
Q:

If logx916 = -12, then the value of x?

A) -3/4 B) 3/4
C) 81/256 D) 256/81
 
Answer & Explanation Answer: D) 256/81

Explanation:
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Filed Under: Logarithms
Exam Prep: Bank Exams
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88 8872
Q:

A person travels from K to L a speed of 50 km/hr and returns by increasing his speed by 50%. What is his average speed for both the trips ?

A) 55 kmph B) 58 kmph
C) 60 kmph D) 66 kmph
 
Answer & Explanation Answer: C) 60 kmph

Explanation:

Speed on return trip = 150% of 50 = 75 km/hr.

Average speed = (2 x 50 x 75)/(50 + 75) = 60 km/hr.

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Filed Under: Time and Distance
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4 8871
Q:

bc _ b _ c _ b _ ccb

A) c b c b B) b b c b
C) c b b c D) b c b c
 
Answer & Explanation Answer: A) c b c b

Explanation:

Here 'bccb' repeated 3 times.

b c c b | b c c b | b c c b 

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Filed Under: Number Series

10 8868
Q:

How many A's are there in the following sequence which are immediately followed by B as well as immediately preceded by Z?

 

A M B Z A N A A B Z A B A Z B A P Z A B A Z A B 

A) Three B) Two
C) One D) More than three
 
Answer & Explanation Answer: A) Three

Explanation:

The letter A satisfying the following Structure ZAB

 

A M B Z A N A A B Z A B A Z B A P Z  A B A Z A B 

 

Answer (A) is correct

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Filed Under: Alphabet Test
Exam Prep: AIEEE , Bank Exams , CAT

5 8852