Question

Donna and Phyllis are reviewing for a math final. They have 150 pages to cover. Donna can review 37 pages an hour, but Phyllis can only go

2
3
as fast as Donna. About how long does it take each girl to finish?
A) It takes Donna 2 hours to finish, and it takes Phyllis 4 hours to finish.
B) It takes Donna 4 hours to finish, and it takes Phyllis 6 hours to finish.
C) It takes Donna 4 hours to finish, and it takes Phyllis 3 hours to finish.
D) It takes Donna 6 hours to finish, and it takes Phyllis 4 hours to finish.

Answer 1

B.It takes Donna 4 hours to finish, and it takes Phyllis 6 hours to finish.

Explanation:

First you divide 150 by 37 to get 4.05 and that is about 4 hrs

Second you divide 150 by 23 and get 6.5 which is about 6 hrs

So the closest whole numbers would be 4 hrs for Donna and 6 hrs for Phyllis