A and B can complete a piece of work in 15 days. They started work together but after 5 days A left the work .If B completed remaining work in 15 days how many days A can complete the work
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Step-by-step explanation:
work ofA+B=5×2=10 units
work left 30−10=20 units
A will complete this work in 202 = 10 days
Total time 10days+2 days
= 12 days
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