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In: Math

A and B together can complete a piece of work in 20 days. B and C together can complete in 30 days. If A is twice as good a workman as C, then in how many days will B alone can complete the same work?

A and B together can complete a piece of work in 20 days. B and C together can complete in 30 days. If A is twice as good a workman as C, then in how many days will B alone can complete the same work?

Solutions

Expert Solution

Solution: A+B’s 1 day’s work = 1/20

 

B+C’s 1 day’s work = 1/30

 

Since, A is twice as good a workman as C.

 

∴ A = 2C

 

B+2C = 1/20

 

C = 1/20 - 1/30 = 1/60

 

B can complete the same work = 1/30 - 1/60 = 1/60 = 60 Days

 

 

60 days

Nipun Maity answered 2 years ago
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