contestada

A machine produces 312 bolts in 30 minutes. At the same rate, how many minutes would it take to produce 260 bolts?

Respuesta :

Trim
312 bolts in 30 mins
or 312 bots in 1800 seconds

Time for 1 bolt is 1800 / 312 =  5.77secs (rounded to two figures)

260 bolts would take:
260 x 5.77 = 1500secs (rounded)

1500secs = 1500 / 60 mins = 25mins

Otras preguntas