Question

Jacob has gained weight.

He now weighs 88kg, which is 10% higher than his normal weight.
What is Jacob's normal weight?

Answer 1

x = 80

Explanation:

x + .1x = 88

or

x(1+.1) = 88

which ever makes more sense to you

1.1 x = 88

x = 88/1.1

x = 80