SOLUTION: willy wanka's factory has a machine that can make 1000 chocolates in 5 hours. A new machine was brought and it could make the same amount of chocolates in 3 hours.During the holid

Algebra ->  Rate-of-work-word-problems -> SOLUTION: willy wanka's factory has a machine that can make 1000 chocolates in 5 hours. A new machine was brought and it could make the same amount of chocolates in 3 hours.During the holid      Log On


   

Question 752812: willy wanka's factory has a machine that can make 1000 chocolates in 5 hours.
A new machine was brought and it could make the same amount of chocolates in 3 hours.During the holiday rush both machines were used together to make 20000 chocolates how long would both machines have to make them?
Answer by dkppathak(439) About Me  (Show Source):
You can put this solution on YOUR website!
1000 chocolates by machine 1 in 5hrs
in 1 hrs a machine will make 200 chocolates
1000 chocolates by machine b in 3 hrs
in 1 hrs machine b will make 1000/3 chocolates
in 1 hrs machine A and machine B will make chocolate 200+ 1000/3
=1600/3 chocolate
1600/3 chocolates made by machine A and B in 1 hrs
1 chocolate will made by both machine in 3/1600 hrs
2000 chocolates will be made by both machine in =2000x3/1600
=15/4 hrs
=3 hrs 45 minutes