13 men can do a piece of work in 20 days , all the 13 men started the work and after 10 days the number of men increased by 13 , then in how many days the remaining work will be done?
please give me the exact explanation please!!
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Answer:
15 days is the answer
total men 13+13=26
total days=20+10 =30
30/2 =15
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