66.7%
50
35
20 mins
positive 10
25 minutes 10 minutes get to 10, and then another 15 minutes gets to quarter past making 10 + 15 = 25 minutes in total.
.25 hours equal 15 minutes, 4.25 hours equal 255 minutes.
66.7%
50
40
35
20 mins
positive 10
15 / 10 is equal to 1.5 or 1 1/2
11:15
15 minutes is one quarter (1/4 or .25) of one hour.
.25 would be 15 minutes.