SOLUTION: Maria and Charlie deliver 75 papers in 3 hours. How long does it take to deliver 60 papers?

Click here to see ALL problems on Percentage-and-ratio-word-problems

Question 1171421: Maria and Charlie deliver 75 papers in 3 hours. How long does it take to deliver 60 papers?
Found 2 solutions by ikleyn, greenestamps:
Answer by ikleyn(52817) (Show Source):
You can put this solution on YOUR website!
.

Use the proportion = . From the proportion, x = = = = 2 hours = 2 hours and 24 minutes. ANSWER

Solved.

Answer by greenestamps(13203) (Show Source):
You can put this solution on YOUR website!

The solution method shown by tutor @ikleyn is a perfectly good one.

Here is another that some students may like better.

(Multiply the given time by the ratio of the numbers of newspapers in the two cases....)

ANSWER: 12/5 hours, or 2 2/5 hours, or 2 hours 24 minutes

In common sense ordinary language, 4/5 as many newspapers to deliver means 4/5 as much time is required.