Question

find x in the series 3,5,x,27,92,349.

Answer 1

a= 3 d=2 an=349
to find= a3
according to this n= 3
a3= a+(n-1) d
a3= 3+6
a3= 9
dude are u really sure that the question is correct because I don't see the d of a2-a1 is equal to a5-a4

Answer 2

Answer:

3,5,?,27,92,349

27 X 4 - 16 = 92

92 X 4 - 19 = 349

So,

Difference between 19 and 16 is 3

Subtract 3 from 16 which is 13

? X 4 - 13 =27

? = 10

Answer : 10