Question

A website has a daily trivia contest. On mondays, wednesday, fridays, you have 1 ½ hours to submit an answer. On tuesdays and thursdays you have 1 ¼ hours. On saturdays and sundays you have only ¾ of an hour. How many hours each week do you have to submit an answer?

Answer 1

8 1/2 hrs/wk

Explanation:

3(1 1/2 hrs) plus

2(1 1/4 hrs) plus

2(3/4 hr)

The LCD here is 4. Convert 3(1 1/2 hrs) to 3(1 2/4 hrs), so that we now have:

3(1 2/4 hrs) = 3 6/4 hrs

+2(1 1/4 hrs) = 2 2/4 hrs

+2(3/4 hrs) = 6/4 hrs

-------------------------------------

5 14/4 hrs, or

5 + 3 2/4 hrs, or

8 1/2 hours/week