117k views
16 votes
Please help I'm confused on this question

Larry took 18 minutes to do 10 math problems. Mary took 19 minutes to do 11 math problems. Which student did more problems per minute?

(PLEASE, THERE IS NO OPTION FOR BOTH)

User Bwags
by
4.3k points

2 Answers

6 votes
You can think about it as problems per minute, set it up as a fraction: problems/minutes and find the answer.

Example:
Larry: 10/18= 0.5556 problems per minute
Mary: 11/19= 0.5789 problems per minute

Therefore, the answer is Mary :)
User Docchang
by
4.0k points
3 votes

Answer:

Mary

Explanation:

18÷10=9/5

19÷11=19/11

19/11 is greater than 9/5

User Gandalf The White
by
4.6k points