Question

All the fudge machines at a chocolate factory work at the same rate. Six machines working simultaneously can complete a big order in 22 hours. How many hours would it take to fill the order if the number of working machines decreased by factor of 2?

Answer 1

half as many machines, so twice as long: 44 hrs

Answer 2

11 hours

This is because it is saying decreased and not increased. So we will have to divide 22 by 2 and that equals 11 hours.

Answer 3

44 hrs.....bc it is half as many so 22x2...

Answer 4

44 hours, By timing 22 by 2 since its half

Answer 5

44hours, because if we have half as many machines, then we need twice as long.

Answer 6

So basically, "factor of 2" doesn't literally mean 2. It's not 6-2=4 machines, it's 6/2=3 machines. Now since it decreased, we now have half as many machines. So this means, the machines need twice as long to finish the job. To find that time you simply multiply 22 by 2 as shown below:

6/2 = 3 machines
It takes 22 hours for 6 machines to finish.
22x2=44
Answer: 44 hours