Combined, Megan and Kelly worked 60 hours. Kelly worked twice as many hours as Megan. How many hours did they each work?

Answer 1

If you let m=megan's hours, then 2m=kelly's hours

2m + m = 60

3m = 60

/3 /3

m=20

So Megan worked 20 hours and Kelly worked the other 40 hours.