12
19.
Four quarter hours.
There are three quarter-hours in 45 minutes.
12
Four ... a "quarter" is a fourth. Four into Twelve equals Three. Three times Four is Twelve.
195 minutes !
105 minutes.
Four quarters is 1. There are 60 minutes in 1 hour.
Four zeros.
If you mean from Noon to quarter to four ( 3:45 Pm) then the answer is 3 hours and 45 mins
1/4 hour is 900 seconds.
Three quarter note beats are in each measure in 3/4 time.
There are 12 quarter hours in 3 hours, since there are 4 quarter hours in an hour.