Question

Working simultaneously, six fudge machines complete a big order in 36 hours. All the machines at the fudge factory work at the same pace. How many hours would it take to complete the order with twice the number of working machines?

Answer 1

Answer: 18 hours

Step-by-step explanation: There are 6 working machines at first, and it takes 36 hours to complete this.

If there are double the machines, it takes half the time to complete the order, because double the amount of fudgemaking is being done per hour.

36 divided by 2 = 18 hours with twice the machines.