Raj can do a piece of work in 20 days. He started the work and left after some days, when 25% work was done. After it Abhijit joined and completed it working for 10 days. In how many days Raj and Abhijit can do the complete work, working together?
Efficiency of Raj = 100 20 = 5%
Work completed by Raj = 25%
Rest work = 75%
Efficiency of Abhijit = 75 10 = 7.5%
Combined efficiency = 5 + 7.5 = 12.5%
They will complete the whole work by working together in,
= 100 12.5 = 8 days
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Anbu rajsays
We update the correct answer
Efficiency of Raj = 100 20 = 5%
Work completed by Raj = 25%
Rest work = 75%
Efficiency of Abhijit = 75 10 = 7.5%
Combined efficiency = 5 + 7.5 = 12.5%
They will complete the whole work by working together in,
= 100 12.5 = 8 days
We update the correct answer
Efficiency of Raj = 100 20 = 5%
Work completed by Raj = 25%
Rest work = 75%
Efficiency of Abhijit = 75 10 = 7.5%
Combined efficiency = 5 + 7.5 = 12.5%
They will complete the whole work by working together in,
= 100 12.5 = 8 days