Chapter 6, Problem 18CR

To determine

To calculate:owner’s charge for haircut

Answer to Problem 18CR

  $\$55$

Explanation of Solution

Calculation:

Let’s assume assistant is charging $ $x$ for a haircut.

Therefore, owner must be charging, $ $x+20$

Now, from the $12$ haircuts, money earned by an assistant is, $12x$

Now, from the $6$ haircuts, money earned by the owner is, $6(x+20)$

Now, the total amount earned by them is $\$750$ ,

  $\therefore 12x+6(x+20)=750$

  $\therefore x=35$

  $\therefore$ Charge of owner’s haircut is, $x+20=35+20=55$