Question

It takes Jim 3 hours to mow his lawn. Jim is 80% finished. How much longer, in minutes, will it take Jim to completely finish mowing his lawn?

Answer 1

36 minutes

Explanation:

Write down Jim's rate:

1 lawn 1 lawn

------------- or --------------------

3 hours 180 minutes

Multiply numerator and denominator both by 0.20:

0.20 lawn

--------------- which tells us it will take Jim 36 more minutes to finish his

36 min mowing.