Question

Which of the following correctly shows the next two terms after -40 in the pattern?-10, 20, -40,...А.80, 160B-2.5,5С60, -80D80, -160

Answer 1

In the pattern -10,20,-40 every next term is obtained by multiplication of -2.

So terms next to -40 is,

$-40\cdot(-2)=80$

Term next to 80 is,

$80\cdot(-2)=-160$

Thus next two terms od -40 are 80 and -160.

Option D is correct option.