# Number Series Questions

Q:

Find the missing number in the series?

4, 18, ?, 100, 180, 294, 448

 A) 48 B) 50 C) 58 D) 60

Explanation:

Take a Look at this series :

$23$ - $22$ =  8 - 4 = 4

$33$ - $32$ = 27 - 9 = 18

$43$ - $42$ = 64 - 16 = 48

$53$ - $52$ = 125 - 25 = 100

$63$ - $62$ = 216 - 36 = 180

$73$ - $72$ = 343 - 49 = 294

$83$ - $82$ = 512 - 64 = 448

3608 318118
Q:

Find the wrong number in the series.

1, 2, 6, 15, 31, 56, 91

 A) 31 B) 15 C) 56 D) 91

Explanation:

The difference of the two consecutive numbers are 1, 4, 9, 16, 25, 35.

This is clearly ,

Here 35 is wrong, So our wrong number is 91

1359 249646
Q:

Find the missing number in the following series?

3, 5, 5, 19, 7, 41, 9, ?

 A) 71 B) 61 C) 79 D) 69

Explanation:

Fiest series : 3, 5, 7, 9

Second series : 5, 19, 41, ?

Difference of Second series are 14, 22, 30 etc

Next term is 41+30 i.e equal to 71

1828 234617
Q:

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

132       156       ?         210          240          272

 A) 196 B) 182 C) 199 D) 204

Explanation:

The given series follows a logic that

11 x 12, 12 x 13, 13 x 14, 14 x 15, 15 x 16,...

So the missing number is 13 x 14 = 182

935 211841
Q:

Find the wrong number in the given series.

8, 27, 125, 343, 1381

 A) 27 B) 8 C) 343 D) 1381

Explanation:

Given series follows Cubes on Prime Numbers

i.e but  $93$is 1331

so 1381 is wrong

396 164658
Q:

Find the next number in the given sequence?

11, 17, 39, 85, ?

 A) 133 B) 143 C) 153 D) 163

Explanation:

Her the given number series is 11, 17, 39, 85, ?

Hence, the next number in the given sequence is 163.

208 133167
Q:

What is the next number of the following sequence ?

21, 77, 165, 285, ......

 A) 404 B) 415 C) 426 D) 437

Explanation:

21 = $\inline \fn_jvn \small 5^{2}-4$
77 = $92-4$
165 = $132-4$
285 = $172-4$

5,9,13,17,21,(+4)...
In the same way next no. will be
$212-4$ = 441 - 4 = 437

223 130710
Q:

1, 2, 3, 10, ?, 9802

 A) 99 B) 199 C) 299 D) 999