Question

Polo shirts come in two colors- white and blue. There are 18 more white polo shirts than blue polo shirts. The white polo shirts make up 68% of the total number of polo shirts. What is the total number of polo shirts?

Answer 1

The total number of polo shirts is 50

Explanation:

Answer 2

The total number of polo shirts is 50

Explanation:

Let

x -----> the number of white polo shirts

y -----> the number of blue polo shirts

we know that

`x=y+18` -----> equation A

`68\%=68/100=0.68`

`x=0.68(x+y)` ------> equation B

substitute equation A in equation B and solve for y

`y+18=0.68(y+18+y)\\ y+18=0.68(2y+18)\\ y+18=1.36y+12.24\\ 1.36y-y=18-12.24\\ 0.36y=5.76\\ y=5.76/0.36\\ y=16\ blue\ polo\ shirts`

Find the value of x

`x=16+18=34\ white\ polo\ shirts`

Find the total number of polo shirts

`x+y=34+16=50\ polo\ shirts`