Question

vidya bharti school starts at 10:30 am and is over at 4:15 pm.if there are two recess periods of 15 minutes and 30 minutes respectively,find the ratio of the recess time to total lesson time of the school​

Answer 1

Answer:

total time taken by the school=10:30 am to 4:15 pm

                                                 =5 hours and 45 min

time period of recess=15+30

                                   =45 minute

time left for periods=5 hours 45 min-45 min

                                =5 hours

time in min=5*60

                 =300 min

ratio=45/300                        

ratio=3/20        

       =3:20