Aptitude and Reasoning Questions

Q:

Find the next number in the number series?

6, 6, 9, 18, 45, ?

A) 87 B) 99.75
C) 115.5 D) 135
 
Answer & Explanation Answer: D) 135

Explanation:

The given number series is 6, 6, 9, 18, 45, ?

Here the series follows a pattern that,

6 x 1 = 6

6 x 1.5 = 9

9 x 2 = 18

18 x 2.5 = 45

45 x 3 = 135

 

Hence, the next number in the given number series is 135.

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Q:

If "A" means "subtraction", "B" means "division", "C" means "addition" and "D" means "multiplication", then

 

330 B 6 A 32 C 45 D 12 = ?

 

A) 525 B) 547
C) 582 D) 563
 
Answer & Explanation Answer: D) 563

Explanation:
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Q:

What will come in place of the question mark (?) in the following number series  ?

12, 24, 26.5, 79.5, ?, 330

A) 211 B) 101.5
C) 82.5 D) 99
 
Answer & Explanation Answer: C) 82.5

Explanation:

The given series 

 

12   24   26.5   79.5   ?   330 follows a pattern that,

 

12 x 2 = 24

 

24 + 2.5 = 26.5

 

26.5 x 3 = 79.5

 

79.5 + 3 = 82.5

 

82.5 x 4 = 330

 

Hence, the missing number is 82.5

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Q:

The average weight of a class of 24 students is 35 kg. If the weight of the teacher be included, the average rises by 400 g. The weight of the teacher is : 

A) 45 kg B) 46 kg
C) 47 kg D) 48 kg
 
Answer & Explanation Answer: A) 45 kg

Explanation:

Weight of the teacher = (35.4 x 25 - 35 x 24) kg = 45 kg.

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Q:

If 'L' stands for '+' , 'M' stands for '-' , N stands for 'x' , P stands for '÷' then

14 N 10 L 42 P 2 M 8 = ?

A) 153 B) 216
C) 248 D) 251
 
Answer & Explanation Answer: A) 153

Explanation:
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Q:

Select the related number from the given alternatives.

2.25 : 13/4 :: 3.75 : ?

A) 17/4 B) 19/4
C) 15/4 D) 11/4
 
Answer & Explanation Answer: B) 19/4

Explanation:
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Q:

A salesman gets commission on total sales at 9%. If the sale is exceeded Rs.10,000 he gets an additional commission as bonus of 3% on the excess of sales over Rs.10,000. If he gets total commission of Rs.1380, then the bonus he received is:

A) Rs.180 B) Rs.120
C) Rs.480 D) data insufficient
 
Answer & Explanation Answer: B) Rs.120

Explanation:

Commission up to 10000 = 10000x9100 = 900 

 

Again after 10000, 

 

              Commission    :   Bonus 

                           9       :   3 

                         3x        :   x

 

 Therefore,   Bonus = 1380-900×14 = Rs. 120

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Q:

If 3x2 + kx + k = 0 has no solution, then the value of k will satisfy

 

A) k > -12 B) k > 12
C) k < 12 D) 0 < k < 12
 
Answer & Explanation Answer: D) 0 < k < 12

Explanation:
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