A can do a piece of work in 12 days. He worked for 15 days and then B completed the remaining work in 10 days. Both of them together will finish it in.
Choose the correct option:
A) 2 days B) 6 days C) 3 days D) 4 days E) 5 days
15/25 + 5/x = 1 =&gt; x = 25/4   1/25 + 4/25 = 5/25=1/5   5 days   ANSW5 daysR:5 days
<result>E</result>
A can do a piece of work in 12 days. He worked for 15 days and then B completed the remaining work in 10 days. Both of them together will finish it in.