A is twiceas fast a b , and is therefore able to finish a work in 30 days less than
b. find the time in which they can do it working together?
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b can complete it in 60 days
bacause Ais twice fast as B
so Bcan complete in 60 days
30+30=60
bacause Ais twice fast as B
so Bcan complete in 60 days
30+30=60
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