30 men can do a certain work in 15 days. They started working on the project but 5 of them leave after every five days. In how many days will the work be completed now?
Correct answer A. 20 days
Tip: press A, B, C or D to answer, and N for the next question.
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More Time and Work questions
See allM and N working separately can complete a job in 6 and 12 hours respectively. If they work for an hour alternately M starting at 10:00 AM when will the job be done?
Correct answer D. 6:00 PM
20 men or 30 boys can do a certain job in 20 days. How long will it take 6 men and 15 boys to do the same job?
Correct answer A. 25 days
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20 men can do a certain work in 60 days but after every five days five additional men join them. In how many days will work be done now?
Correct answer D. 34.5 days
Two pipes A and B can fill a tank in 14 and 21 hrs respectively. If both pipes are opened together then after how many hours A should be closed so that tank is full in 7 hours.
Correct answer A. 28/5 hrs
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