Question

700,1400,4200...........?

Answer 1

The answer is 16800

Every succeding number is multiplied by x(n+1)

where,

x = preceding number

n = Number by which second previous number was multiplied with to get previous number.

In the starting, value of n = 2.

1400 = 700×2

4200 = 1400 ×( 2+1 ) =1400×3

16800= 4200 ×(3 +1 ) = 4200 × 4

Hence, the order is

700,1400,4200,16800,84000.....