Question

What is a common sense ratio of the sequence? -2,5,-18,54

Answer 1

I think there is 6 in place of 5

Let's consider 6 there

-2,6,-18,54

first term is -2

second term is 6

common ratio is the ratio of second term and first term

so, we get

`r=(6)/(-2)`

`r=-3`................Answer