Look at the sequence : 5, -10, 20, -40, 80

Question

asked Sep 4, 2019 182k views

2 Answers

CorrieJanse · Answer 1 · 2019-09-05T01:05:59+0000

Answer:

5 (5x1) , -10 -(5x2), 20(10x2), -40 -(20x2), 80(40x2)

so the next number should be previous number in the sequence multiplied by 2 and a negative sign.

-`(80x2) = -160

Explanation:

Twistleton · Answer 2 · 2019-09-11T01:55:57+0000

Answer:

5 (5x1) , -10 -(5x2), 20(10x2), -40 -(20x2), 80(40x2)

so the next number should be previous number in the sequence multiplied by 2 and a negative sign.

-`(80x2) = -160