Question

Gordon was thinking of a number. Gordon doubles it, then adds 20 to get an answer of 66.3. What was the original number?

Answer 1

Answer:
23.15

23.15 X 2 = 46.3

46.3 + 20 = 66.3

Answer 2

23.5

Explanation:

let's take the number as X

2X+20=66.3

2X=66.3-20

X=23.15