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A can complete a work in 24 days and B can complete the same work in18 days. A and B started doing the work together. After 4 days, A discontinuedworking. How many days would the work take to be completed?6 |
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Answer» A can complete work in 24 days so in 1 day A can do 1/24 of work.B can complete work in 18 days so in 1 day B can do 1/18 work.now up to 4 days they are working together.so total.work done = 4(1/24+1/18)=4(3+4)/72=28/72so still 44/72 work incomplete.so no of days B will take to complete work is=(44/72)/(1/18)=(44*18)/72= 11 days. |
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