Question

The value of a professional basketball player's autograph rose 20% in the last year. It is now worth $252.00. What was it worth a year ago?

Answer 1

*REVERSE THE CHANGE QUESTION*

100% + 20% = 120% = $252

252 / 120 = $2.10 = 1%

100% = 2.1 x 100 = $210

Answer 2

The worth of the player a year ago = $210

Explanation:

let the previous year worth be $ y

If we add 20% of y to y we will get the current year worth, which is $252 .

20/100 × y + y = 252

1/5y + y = 252

0.2y + y = 252

1.2y = 252

divide both sides by 1.2

y = 252/1.2

y = $210

The worth a year ago is $210