Exercise 27

Jhon used to spend \$30 a month on baldness treatment. He stopped treatment 10 months ago and has been completely bald for the last 7 months. If he used to cut his hair twice a month and spent \$20 per cut, the savings he has made are:

  1. $440

  2. $460

  3. $280

  4. $580

  5. $490

Try to solve it before checking the answer.
  1. $580

Jhon saves:

  • On treatment:   \$30 per month during 10 months = \$300

  • On hair cuts:   \$40 during 7 months = \$280

In all, he saves:

\[ 300 + 280 = 580 \text{ dollars} \]