Question

Find the next number in the number series?

6, 6, 9, 18, 45, ?
A) 87
B) 99.75
C) 115.5
D) 135

Answer 1

Find the next number in the number series?

6, 6, 9, 18, 45, ?
A) 87
B) 99.75
C) 115.5
D) 135


The given number series is 10, 21, 54, 109, 189

The series follows a pattern that

10 + 11 = 21

21 + 33 = 54

54 + 55 = 109

109 + 77 = 186

Hence the wrong number in the given number series is 189.

Answer 2

Step-by-step explanation:

Find the next number in the number series?

6, 6, 9, 18, 45, ?

A) 87

B) 99.75

C) 115.5

D) 135

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.