Aptitude and Reasoning Questions

Q:

Ticket for an adult is Rs 1600 and a child is Rs 1200. 1 child goes free with two adults. If a group has 23 adults and 10 children what is the discount the group gets?

A) 25.95 percent B) 24.59 percent
C) 25.77 percent D) 31.60 percent
 
Answer & Explanation Answer: B) 24.59 percent

Explanation:
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Q:

Expand and simplify (2x + 5)2 *(4x ­- 1) -­ (3x3 - 16x2 + 25x -­ 21)

A) 13x3 + 92x2 -­ 55x + 4 B) 13x3 -­ 92x2 -­ 55x -­ 4
C) 13x3 + 92x2 + 55x -­ 4 D) 13x3 -­ 92x2 + 55x + 4
 
Answer & Explanation Answer: C) 13x3 + 92x2 + 55x -­ 4

Explanation:
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Q:

Multiplicative inverse of 7?

A) 1 B) -1/7
C) 0 D) 1/7
 
Answer & Explanation Answer: D) 1/7

Explanation:

Multiplicative inverse is nothing but a reciprocal of a number. 

It is defined as one of a pair of numbers that when multiplied with another number equals the number 1.

Multiplicative inverse or reciprocal of 7 is 

7 x n = 1

=> n = 1/7.

 

Hence, Multiplicative inverse or reciprocal of 7 is  1/7.

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Filed Under: Arithmetical Reasoning
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Q:

In a certain code language, "PEN-TAN" is written as "0". How is "DEN-COB" written in that code language?

A) 8 B) 3
C) 9 D) 7
 
Answer & Explanation Answer: B) 3

Explanation:
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Q:

If in an A.P series 18th term is 29 and 29th term is 18. Then find the 49th term ?

A) -3 B) -2
C) 0 D) 1
 
Answer & Explanation Answer: B) -2

Explanation:

We know that in A.P series
18th term = a + 17d
29th term = a + 28d
But given
a + 17d = 29..........(i)
a + 28d = 18......... (ii)
Solving equation (i) and (ii), we get
d = -1
put d = -1 in any of the above equations and we get,
a = 46
Now, we know 49th term can be written as, a + 48d
putting the value of a and d in the above equation,
a + 48d = 46 + 48(-1)
= 46 - 48
= -2

Hence, the 49th term is -2.

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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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Q:

Which of the following correctly represents the relationship between
A) Peak
B) Clouds
C) Mountain

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

Explanation:
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Q:

Smallest prime number greater than 200?

A) 201 B) 205
C) 211 D) 203
 
Answer & Explanation Answer: C) 211

Explanation:

From the trial and error method of division,

201 is divisible by 3

205 is divisible by 5

203 is divisible by 7

 

Hence, after eliminating three options, remained is 211 and is divisible by only 1 and itself. 

 

Therefore, 211 is the smallest prime number greater than 200.

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Filed Under: Arithmetical Reasoning
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