SOLUTION: How long would it take bonnie to do the job alone. If andy works twice as fast as bonnie. Together, they can finish a job in 4 hours

Question 993667: How long would it take bonnie to do the job alone. If andy works twice as fast as bonnie. Together, they can finish a job in 4 hours
Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
Hi there,
Bonnie works at x hrs
Andy works at 2x hours
Together they can do the job
in 4 hours
1/x + 1/2x = 1/4
Common denominator = 4x
4 + 2 = x
x = 6 hours
Bonnie can do the job in 6 hours
Andy can do the job in 12 hours
Hope this helps :-)
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