Question

Mindy worked on her school project for 1 1/2 hours. Tyler worked on his school project for 75 minutes. How many more minutes did Mindy work on her project than Tyler worked on his?

A) Mindy worked 15 minutes more than Tyler.
B) Mindy worked 10 minutes more than Tyler.
C) Mindy worked 5 minutes more than Tyler.
D) Mindy worked 20 minutes more than Tyler.

Answer 1

Mindy worked 15 minutes more than Tyler.

Step-by-step explanation:

First, convert the mixed number (1 1/2 hours) to an improper fraction. 1 1/2 hours is equivalent to 3/2 hours.

Next, convert the mixed number (75 minutes) to an improper fraction. 75 minutes is equivalent to 1 1/4 hours.

To find the difference in minutes, subtract the fractions:

3/2 - 1 1/4 = 6/4 - 5/4 = 1/4

1/4 hour is equal to 15 minutes, so Mindy worked 15 minutes more than Tyler.