Question

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

Answer 1

It would take 26 minutes to produce about 260 bolts

How I did it-
312/30= 10.4
10.4= Bolts per minute You have to round= 10
260/10= 26
26 minutes

Answer 2

Hi

312 bolts ⇒ 30 min
260 bolts ⇒ x min

312x = 30·(260)
312x = 7800
x = 7800/312
x = 25 min

Answer: 25 minutes