6
Q:

What should come in place of question mark (?) in the following number series ?38     195     ?     4905     24530     122655

 A) 980 B) 885 C) 824 D) 1021

Answer:   A) 980

Explanation:

The given series follows the pattern that,

×5+5,   ×5+5,   ×5+5,   ×5+5,   ×5+5

38 x 5 + 5  = 195

195 x 5 + 5 = 980

980 x 5 + 5 = 4905

4905 x 5 + 5 = 24530

24530 x 5 + 5 = 122655

So the missing number is 980 .

Q:

Find the missing number in the given number series?

5 11 21 44 ? 175

 A) 86 B) 78 C) 94 D) 102

Answer & Explanation Answer: A) 86

Explanation:

Here the given number series is 5  11  21  44  ?  175

Now the given series follows a pattern, that

x2 + 1, x2 - 1, x2 + 2, x2 - 2, x2 + 3, x2 - 3,...

Then the missing number is x2 - 2

= 44 x 2 - 2 = 88 - 2 = 86

Hence, the missing number in the number series is 86.

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0 3
Q:

Find the Odd one out of the following Numbers?

 A) 3 B) 19 C) 67 D) 133

Answer & Explanation Answer: D) 133

Explanation:

Here among the given numbers, 3, 19, 67 are prime numbers. And 133 is not a prime number.

Hence, the odd number of the given numbers is 133.

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0 143
Q:

Find the odd man out of the number series?

18     37     76     155     314     635

 A) 37 B) 155 C) 314 D) 635

Answer & Explanation Answer: D) 635

Explanation:

Given Number series is 18     37     76     155     314     635

follows a pattern that,

18

18 x 2 +1 = 37

37 x 2 +2 = 76

76 x 2 +3 = 155

155 x 2 +4 = 314

314 x 2 +5 = 633 not 635

Hence, the odd man is 635.

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5 61
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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4 109
Q:

Find the next number in the given number series?

0, 3, 8, 15, 24, ?

 A) 35 B) 37 C) 34 D) 36

Answer & Explanation Answer: A) 35

Explanation:

Here the given number series is 0, 3, 8, 15, 24, ?

The next number in the given series can be found such a way that the number series follows a pattern,

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2 97
Q:

Find the Missing number in the given number series?

5, 9, 15, 23, ?, 45

 A) 33 B) 29 C) 31 D) 35

Answer & Explanation Answer: A) 33

Explanation:

The given series follows a pattern that,

+4, +6, +8, +10, +12...

5

5 + 4 = 9

9 + 6 = 15

15 + 8 = 23

23 + 10 = 33

33 + 12 = 45

Hence, the missing number in the series is 33.

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1 78
Q:

Find the next number in the number series?

1, 4, 12, 32, ?

 A) 80 B) 100 C) 192 D) 169

Answer & Explanation Answer: A) 80

Explanation:

Next number of the sequence 1, 4, 12, 32,...

1 = 2 x ${2}^{0}$

4 = 2 x ${2}^{1}$

12 = 3 x ${2}^{2}$

32 = 4 x ${2}^{3}$

80 = 5 x ${2}^{4}$.

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1 184
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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1 103