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Rafiq, Shafiq and Arif can alone complete a project in 10 days , 20 days, and 10 days respectively , Rafiq started working on the project alone, Shafiq the project after 2 days, after working together for 4 days both Rafiq and Shafiq left the project and Arif git in. How many days it took to complete the entire project? (work & time)

Created: 2 years ago | Updated: 1 year ago
Updated: 1 year ago
Answer :

Rafiq can do in 1 day=110 portion of work

Rafiq can do in 6 days =610=35 portion of work

Shafiq can do in 1 day= 120 portion of work

Shafiq can do in 4 days = 420=15 portion of work

Rafiq & Shafiq completed in first 6 days= 35+15=45  portion of work

So, the remaining work = (1-45)=15 portion of work

Arif can do in 1 day =110 portion of work

Arif can do 110 portion in 1 day

Arif can do 15 portion in = 105=2 days

The required time for completion of the work=6+2=8 days ans.

1 year ago

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