Question

90, 906, 9066, 90666Neither Arithmetic Geometric

Answer 1

the given series is ,

90 , 906 , 9066 , 90666

common difference = d = 906 - 90 = 816

d = 9066 - 906 = 8160

as common difference is not same,

so it is not airthmatic series,

common ratio,

906/90 = 10.6

9066/906 = 10.006

90666/9066 = 10.0006

also, the common difference is not the same,

so also it is nota a geometric series,

thus, the answer is option A