Question

7/8 hr class 1/2 is for playing 1/5 is for instruction 3/10 is for cooling down and warm up. How much was spent for cooling down and warmup?

Answer 1

60*7/8
420/8
52.5
therefore the class is 52.5min
52.5*3/10=16.15
therefore they spent 15.15 min cooling down and warm up