Question

at 3;43 don finished baking 48 doughnuts. He started at 3:27 pm at his baking speed what time after 3:43 will it be for him to finish another 5 dozen doughnuts

Answer 1

5 dozen= 60 doughnuts
3;43-3;27 = 16
So it took him 16 minutes for 48 doughnuts
16÷48=0,3 so one doughnut takes him 30 seconds
60×0,3=19,99=20 so it takes him about 20 minutes for 5 dozens of doughnuts
So it'll be 4;03