Oscar can tile a floor in 7 minutes by himselfwile Esmeralda can tile the same floor in 5 hours working alone how long would it take for both working together tonite the floor round to the nearest decimal

Respuesta :

293 mins =4.8 hrs I got 293 from 5 hours you convert it to minutes and you times 60 x 5 = 293 divided by 5 minus 7 mins  = 4.8 hrs 
It would take both of the 4.8 hours