Question

Mixed applicationsDuring the month of July 3/20 of the tshirts sold were small and 10/25 of the T-shirt’s sold were size large. What percent of the tshirts sold were neither small or large?

Answer 1

Let x be the fraction that corresponds to the percent of T-shirts sold that were neither small nor large, then:

`x+(3)/(20)+(10)/(25)=1.`

Adding like terms we get:

`x+(11)/(20)=1.`

Subtracting 11/20 from the above equation we get:

`x=1-(11)/(20)=(9)/(20)\text{.}`

The above fraction as a percentage is

`(9)/(20)*100=45.`

Answer: 45%.