Question

There are 15 boys and 5 girls in a class.

The mean amount of time of finishing a test was 45 minutes for the boys and 55
minutes for the girls.
What was the mean of the class?
Give your answer in minutes to one decimal place.

Answer 1

Answer: 50.0

Explanation:

1. Add 45+55=100

2. Divide 100 by 2 =50

3. Add a decimal after 50.0