A barber can cut one man's hair in 35 minutes. How many haircuts can he complete in an 8 hour day?

Question

Quizplus · Accepted Answer

To solve problems about the rate of completion, we can think of them like distance/speed problems. Distance = Rate • Time but instead of distance the result is the number completed. Number completed = Rate • Time Step 1: Convert the hours of the time it takes to minutes, since the rate is given to you in minutes. 8 hours • 60 minutes = 480 minutes Step 2: Determine the rate. The problem tells us the barber can cut one man's hair every 35 minutes. ^{1 haircut}/_{35 minutes} • 480 minutes = 13.7 haircuts Step 3: Plug in your values to the equation and solve. ^{1 haircut}/_{35 minutes} • 480 minutes = 13.7 haircuts ⁴⁸⁰/₃₅= 13.7 haircuts We must round this down to 13 because he did not complete the last one.

A Barber Can Cut One Man's Hair in 35 Minutes