Ralph plays tennis in a month= 15 1/3 = 46/3 hours
Months in a year= 12 months
Ralph plays tennis in a year= 12*46/3 hours
Ralph plays tennis in a year= 4*46 hours= 184 hours
Months in a year= 12 months
Ralph plays tennis in a year= 12*46/3 hours
Ralph plays tennis in a year= 4*46 hours= 184 hours