MODERATE Examine this series: 6, 8, 20, 36, 76.

[admin]

Examine this series: 6, 8, 20, 36, 76.

If another series is written with the same rule, what number would come in the place C: 20, A, B, C, D, E ?

 

[kiran]

148

 

[J DINESH BALAJI]

20 22 62 106 230

 

[admin]

20 22 62 106 230

It's not new series, it's continuation of the previous series only.

 

[jitendra]

C.20

 

[KAPIL PARIHAR]

148

 

[Mohan manjhi]

H

Examine this series: 6, 8, 20, 36, 76.

If another series is written with the same rule, what number would come in the place C: 20, A, B, C, D, E ?

 

[Chain Singh]

148

Plz explain

 

[vishal]

148 because
*2-4
*2+4

 

[shashikumar]

series1 : 6, 8, 20, 36, 76
series2 : 36, 76, 148, 300, 596
Thus s2 c =148

 

[admin]

148 because
*2-4
*2+4

Very interesting logic @vishal - I had put up the question in a different logic.

(x*2)+(next number) was the logic which I had applied :
6 *2 + 8 = 20
8*2 + 20 = 36
20*2 + 6 = 76

 

[Anurag]

148

 

[Devang talaviya]

148

 

[Rajat]

For series, 6,8,20,36,72
6,(6*2-4=8),(8*2+4=20),(20*2-4=36),........
So for the next series,
20,(20*2-4=36),(36*2+4=76),(76*2-4=148),.....
Ans. 148

 

[Bnna_Divy]

6, 8, 20, 36, 76, 148, 300 ,596
C=148 from 20 , A=36 ,B=76

 

[ranju ammu]

next series is...
20,36,76,148,300,596
and c value is 148.

 

[Lucky Salvi]

148

 

[A.U.Gokulkrishna]

36,76,148,300,596

 

[Rashmi Rashmi]

148

 

[shubham patel]

148