OK so I have the GMAT tomorrow afternoon but there is one more problem that I cannot let go. It is this weird rate problem.
Machine A produces pencils at a constant rate of 9,000 pencils per hour, and machine B produces pencils at a constant rate of 7,000 pencils per hour. If the two machines must produce 100,000 pencils and each machine can operate at most 8 hours, what is the least amount of time, in hours, that machine B must operate?
1.)4
2.)4 2/3
3.)5 1/3
4.)6
5.)6 1/4
I am pretty proficient at rate problems but I spent so much time on this one and I was pretty sure I solved it correctly, only to find out that I missed it. ARGGG!!!!
Machine A produces pencils at a constant rate of 9,000 pencils per hour, and machine B produces pencils at a constant rate of 7,000 pencils per hour. If the two machines must produce 100,000 pencils and each machine can operate at most 8 hours, what is the least amount of time, in hours, that machine B must operate?
1.)4
2.)4 2/3
3.)5 1/3
4.)6
5.)6 1/4
I am pretty proficient at rate problems but I spent so much time on this one and I was pretty sure I solved it correctly, only to find out that I missed it. ARGGG!!!!
