1 and a half. There are one and a half minutes in one and a half minutes.
there are 90 secs in 1 and 1/2 minutes
There are 60 minutes in 1 hour so there are 60 x 5.5 minutes in five and a half hours, which is 330 minutes.
90
There are 150 minutes in 2+1/2 hours; there are 60 minutes per hour.
1 hour = 60 minutes → 4½ hours = 4.5 × 60 minutes = 270 minutes
90 minutes
there are 90 secs in 1 and 1/2 minutes
30.
1 hour = 60 minutes, 1/2 hour = 30 minutes! Therefore 1 and a half hour would equal 90 minutes! Can't you add?
60 minutes in an hour; 30 minutes in a half hour. 5 and 1/2 = 330 minutes
90 minutes
There are 60 minutes in 1 hour so there are 60 x 5.5 minutes in five and a half hours, which is 330 minutes.
90
Half an hour is 1800 seconds. 3 half hours are 5,400 seconds.
There are 150 minutes in 2+1/2 hours; there are 60 minutes per hour.
60 seconds an 1 minute 60 minutes in 1 hour 30 minutes in half an hour 90 minutes in one and a half hours. So 90 minutes * 60 seconds = 5400 seconds
30 seconds in 1/2 minute.