Worker A can do a job in 3 hours. Worker B can do the same job in 5 hours. How long would it take if they worked together on the same job?
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Answer:
A can do a job in = 3 hours
A one hour work = 1/3 hours
B can do the same job in = 5 hours
B one hour work = 1/5 hours
(A+B) work = 1/3+1/5 = 5+3/15 = 8/15
Step-by-step explanation:
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Step-by-step explanation:
work done by A=24/3
=1/8
work done by B=24/5
If both will do together= 1/8+24/5
=197/40hours
=197/40×24
=59.1hours
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