Question

person a can complete a job in 20 days while B alone can complete a day 30 days they worked together for 10 days. the remaining job was done by c in 4days. in how many days can c complete the job?

Answer 1

A Work = 20 days , B Work = 30 days

One Day Work A = 1/20 , One Day Work B = 1/30

Total Work = 60 unit

A One day Work = 3 unit. B One day Work = 2 unit.

Total work in One Day A+B = 3+2 = 5 unit

In 10 days Both complete 5×10 = 50 unit work.
Remaining 10 unit work C complete in 4 days.

If C complete Total Work then it take 4×6 = 24 days.

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