Aptitude and Reasoning Questions

Q:

Find the unit place digit in the given expression.

 

153144 - 115123 - 111510 + 21625

 

A) 1 B) 5
C) 6 D) 3
 
Answer & Explanation Answer: A) 1

Explanation:
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Q:

Compute of 29292 x 9999 = ?

 

 

A) 222890708  B) 298290708 
C) 292809708  D) 292890708
 
Answer & Explanation Answer: D) 292890708

Explanation:
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Q:

A sum of money amounts to Rs.6690 after 3 years and to Rs.10,035 after 6 years on compound interest.find the sum.

A) 4360 B) 4460
C) 4560 D) 4660
 
Answer & Explanation Answer: B) 4460

Explanation:

Let the sum be Rs.P.then
P(1+R/100)^3=6690…(i) and P(1+R/100)^6=10035…(ii)
On dividing,we get (1+R/100)^3=10025/6690=3/2.
Substituting this value in (i),we get:
P*(3/2)=6690 or P=(6690*2/3)=4460
Hence,the sum is rs.4460.

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270 75967
Q:

Find the missing number in the given number series?

2676, 445, ?, 21,6, 2, 1

A) 88 B) 92
C) 96 D) 102
 
Answer & Explanation Answer: A) 88

Explanation:

The given number series 2676, 445, ?, 21,6, 2, 1 follows a pattern that,

From right side,

1

1 x 1 + 1 = 2

2 x 2 + 2 = 6

6 x 3 + 3 = 21

21 x 4 + 4 = 88

88 x 5 + 5 = 445

445 x 6 + 6 = 2676

 

Hence the missing number in the given number series is 88.

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Q:

9 17 11 19 13

What Are The Next Three Numbers In The Given Number Series?

A) 17, 10, 18 B) 19, 14, 23
C) 21, 15, 23 D) 19, 13, 22
 
Answer & Explanation Answer: C) 21, 15, 23

Explanation:

Given number series is 9 17 11 19 13 

Here the pattern is

      • 9
      • 9 + 8 = 17
      • 17 - 6 = 11
      • 11 + 8 = 19
      • 19 - 6 = 13
      • 13 + 8 = 21
      • 21 - 6 = 15
      • 15 + 8 = 23
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Q:

What is the value of (2 - tan60°) ?

 

A) -1/√3 B) (√3-4)/2√3  
C) -1/2   D) 2-√3
 
Answer & Explanation Answer: D) 2-√3

Explanation:
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Q:

Suppose 0 < θ < 90, then for every θ 4 sin2 θ + 1 is greater than or equal to ?

 

A) 2 B) 4 sin θ 
C) 4 cos θ  D) 4 tan θ
 
Answer & Explanation Answer: B) 4 sin θ 

Explanation:
We know that,
Arithmetic mean ≥ Geometric mean
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Q:

What is the value of (1/√3 - sin45)?

 

A) 1/2√3   B) (√2-√3)/√6  
C) 1-√2   D) (4-√3)/2
 
Answer & Explanation Answer: B) (√2-√3)/√6  

Explanation:
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