Question

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!!

Answer 1

Answer:

15 days is the answer

total men 13+13=26

total days=20+10 =30

30/2 =15