Question

Jason can peel 15 potatoes in 25 minutes. Janette can peel 8 potatoes in 1/10 hour. If they start peeling at the same time how many

minutes will it take them to peel 406 potatoes?

Answer 1

9514 1404 393

Answer:

210 minutes

Explanation:

Jason's rate of peeling is ...

(15 potatoes)/(25 minutes) = 15/25 potatoes/minute = 3/5 potatoes/minute

Janette's rate of peeing potatoes is ...

(8 potatoes)/(6 minutes) = 4/3 potatoes/minute

Their combined rate is ...

(3/5 +4/3) = (9 +20)/15 = 29/15 . . . . potatotes/minute

Then the time required for 406 potatoes is ...

(406 potatoes)/(29/15 potatoes/minute) = (406×15/29) minutes

= 210 minutes