Question

Uncle Percy and the Ratiolas did not sell 10% Of the T-shirts they brought to the show. If they had 25 T-shirts left, how many did they start with?

Answer 1

250 shirts

Explanation:

Let x be the number of t-shirts that were brought to the show.

They did not sell 10% of the shirts; 10% = 10/11 = 0.10; this gives us the expression 0.10x to represent the unsold shirts.

We know they had 25 shirts left; this gives us the equation

0.10x = 25

To solve, divide both sides by 0.10:

0.10x/0.10 = 25/0.10

x = 250

Answer 2

They started with 250 shirts