Question

Ms. Slade spends 7/20 of her day at work grading papers. If she works from 7:45 am to 3:45 pm, how much time does she spend grading papers?

A. 3 hours 15 mins
B. 2 hours 48 mins
C. 3 hours 9 mins
D. 2 hours 27 mins

Answer 1

Ms. Slade spends 2 hours and 48 minutes grading papers. Hence, B) is correct.

Step-by-step explanation:

To find how much time Ms. Slade spends grading papers, we need to calculate 7/20 of her total workday.

First, let's find the total number of hours she works: 3:45 pm - 7:45 am = 8 hours.

Next, we need to find 7/20 of 8 hours.

Multiply 8 by 7/20 to get 2.8 hours. Since there are 60 minutes in an hour, multiply 0.8 by 60 to get 48 minutes.

So, Ms. Slade spends 2 hours and 48 minutes grading papers.