Question

5,15,35,75 next number

Answer 1

155

Explanation:

15-5 is 10

35-15 is 20

75-35 is 40

155 because 10 x 2 is 20, 20 x 2 is 40, 40 x 2 is 80 and 155-75 is 80.

Answer 2

155

Explanation:

The pattern is the previous number*2 and then +5

5*2=10+5=15

15*2=30+5=35

35*2=70+5=75

Hope this helps