One hour is 60 minutes so one and a half hour is 60 + 30=90 minutes
12 hour
30 minutes = half an hour, because 60 minutes are one hour.
There are 30 minutes in half an hour and 15 minutes in a quarter of an hour
One hour is 60 minutes so 30 minutes is one-half of an hour.
One half of an hour.
One and a half hour is 90 minutes.
One and one half or One and a half
One hour is 60 minutes so one and a half hour is 60 + 30=90 minutes
My work will be completed in an hour and a half.
12 hour
30 minutes = half an hour, because 60 minutes are one hour.
There are 30 minutes in half an hour and 15 minutes in a quarter of an hour
A half hour is 30 min so there is two half hours in an hour
30 minutes
because 90 minutes =one and half hour
One hour is 60 minutes so 30 minutes is one-half of an hour.