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:

$x+\frac{3}{20}+\frac{10}{25}=1.$

Adding like terms we get:

$x+\frac{11}{20}=1.$

Subtracting 11/20 from the above equation we get:

$x=1-\frac{11}{20}=\frac{9}{20}\text{.}$

The above fraction as a percentage is

$\frac{9}{20}\times100=45.$

Answer: 45%.