Question

Dale drove to pick up his little sister from soccer practice and brought her home. He had expected the entire trip to take 22 minutes. His prediction turned out to be 12% less than the actual time the trip took. How long did it actually take Dale to pick up his little sister and return home? minutes

Answer 1

Explanation:

the actual time it took for the trip is 100%.

12% less is then 88%.

22 minutes is then 88% of the actual time.

the actual time is therefore

22 × 100/88 = 25 minutes.

why ?

22/88 gives us 1%.

and 1%×100 = 22/88 × 100 is then 100%.