Home
Class 14
REASONING
Which number will replace the question m...

Which number will replace the question mark (?) in the following series? `1, 4, 3, 4, 7, 7, 13, 13,` ?

A

20

B

22

C

31

D

21

Text Solution

Verified by Experts

The correct Answer is:
D
it is an alternative series. where 1,3,7,13 in a series and 4,4,7,13 are also in a series.
`1+2=3`
`3+4=7`
`7+6=13`
`13+8=21`
Promotional Banner

Similar Questions

Explore conceptually related problems

Which figure will replace the question mark (?) in the following series?

Which number will replace the question mark (?) in the following series? 3, 7, 13, 27, ?, 107, 213