Question

What is the pattern for -5, 10, -15, 20, -25

Answer 1

The number 5 multiplied by -1 then by 2 then by -3 then by 4....... (alternating positive and negative

Explanation:

5*-1 = -5

5*2 = 10

5*-3= -15

5*4= 20

5*-5 = -25 ......