There are three quarter-hours in 45 minutes.
60 minutes is 4 quarter-hours.
Four quarter hours.
19.
There are 75 minutes in 1.25 hours
195 minutes.
315 minutes.
195 minutes !
195 minutes.
315 minutes.
1 quarter hour is 15 minutes. So 5 quarter hours would be 75 minutes. 5x15=75