Question

A machine produces 247 bolts in 26 minutes. At the same rate, how many minutes would it take to produce 209 bolts?

Answer 1

22 minutes

Explanation:

247/26 = 9.5 bolts per minute

209/9.5 = 22

or

247/26 = 209/x

cross multiply

247x = 209 x 26

247x = 5434

divide both sides by 247

x = 22 minutes