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A can do 3/8 part of a work in 9 hrs. B can do 1/4 part of the same work in 4 hrs.Both work together and complete the work in:48(a) hrs35(c) hrs(d) 5 hrs(h) ag hrs48 |
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Answer» A can do 3/8 part work in 9 hrs so total work in 24hB can do 1/4 part work in 4 hrs so total work in 16hif both work together then 1/24+1/16=(16+24)/(24×16)=10/96so time needed is 9.6h |
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