Mathematics, 29.01.2021 09:10, ericuh
a and b can do a piece of work in 12 days, b and c in 15 days and c and a in 20 days. how much time will a alone take to finish the job
Answers: 3
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a and b can do a piece of work in 12 days, b and c in 15 days and c and a in 20 days. how much time...
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