While working alone at the their respective rates, machine X produces 240 files in 4 hours and machine Y produces 240 files in 8 hours. How long would it take the two working at their respective rates to process 240 files?
A) 2 hours
B) 2 hours 20 min
C) 2 hours 40 min
D)6 hours
E) 6 hours 20 min
Answer: C
I'm usually good w/rate problems but had no idea how to do this one! Thanks!
A) 2 hours
B) 2 hours 20 min
C) 2 hours 40 min
D)6 hours
E) 6 hours 20 min
Answer: C
I'm usually good w/rate problems but had no idea how to do this one! Thanks!
