Quantitative Aptitude - Arithmetic Ability Questions

Q:

Find the Odd One Out?

3 24 186 1008 5040 20160

A) 24 B) 20160
C) 186 D) 5040
 
Answer & Explanation Answer: C) 186

Explanation:

The given number series is 3  24  186  1008  5040  20160

Here  the given series follows a pattern that,

3

3 x 8 = 24

24 x 7 = 168 not 186

168 x 6 = 1008

1008 x 5 =  5040

5040 x 4 = 20160

 

Hence the Odd One in the number series is 186.

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Q:

30% of a number is 33. What is the number?

 

A) 120 B) 115
C) 105 D) 110
 
Answer & Explanation Answer: D) 110

Explanation:
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Filed Under: Percentage
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Q:

Which of the following conditions is correct for a right angled triangle?

 

A) Sum of the two angles of a triangle is greater than the third angle B) Sum of the two angles of a triangle is less than the third angle
C) Sum of the two angles of a triangle is equal to the third angle D) None of these
 
Answer & Explanation Answer: C) Sum of the two angles of a triangle is equal to the third angle

Explanation:
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Filed Under: Area
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Q:

If log 27 = 1.431, then the value of log 9 is

A) 0.754 B) 0.854
C) 0.954 D) 0.654
 
Answer & Explanation Answer: C) 0.954

Explanation:

log 27 = 1.431
log33 = 1.431
3 log 3 = 1.431
log 3 = 0.477
log 9 = log(32)= 2 log 3 = (2 x 0.477) = 0.954

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Filed Under: Logarithms
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130 64419
Q:

Mark the odd man out in the given number series

24.3, 23.1, 20.7, 17.1, 12.4

A) 12.4 B) 17.1
C) 20.7 D) 23.1
 
Answer & Explanation Answer: A) 12.4

Explanation:

The given series 24.3, 23.1, 20.7, 17.1, 12.4 follows a pattern that

24.3

24.3 - 1.2 = 23.1

23.1 - 2.4 = 20.7

20.7 - 3.6 = 17.1

17.1 - 4.8 = 12.3 not 12.4

 

Hence, the odd man or odd number in the given series is 12.4

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Q:

What is the total length intercepted between both the axes by the line 8x+4y=40?

 

A) 5   B)  10  
C)  15   D)  20
 
Answer & Explanation Answer: C)  15  

Explanation:
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Q:

What is the value of [(√529) + (√5.29) + (√0.0529)]?

 

A) 25.323   B) 25.53  
C) 23.253   D) 23.53
 
Answer & Explanation Answer: B) 25.53  

Explanation:
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Q:

Solve : 2x + 4 = x - 3

 

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

Explanation:
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