How many hours are there in 660 minutes?	Choose the correct choice from the following:
A) 60 hours	B) 6 hours	C) 30 hours	D) 11 hours	E) 10 hours

Rationale: "solution : number of minutes in 1 hour = 60 minutes so just divide 660 by 60 660 ã · 60 = 11 , so there are 11 hours in 660 minutes option d"
Answer: D