Question

Ken had 80 rubber bands, he sold 10 and 10

got damaged. How many good rubber bands
were left with Ken? What percentage of
rubber bands were left?​

Answer 1

60 were left with Ken, and that is 75%

Explanation:

80-10 = 70

70-10 = 60

60/80 = x/100, simplify & cross multiply

6/8 = x/100

600 = 8x

x = 75

Answer 2

80-20=60
He has 75% of his rubber bands left.