A can do a piece of work in 10 days and B can do it in 15 days and C can do it 20 days. They started the work together and A leaves after 2 days and B leaves after 4 days from the beginning. How long will work lost?	Choose the correct choice from the following options:
A) 1 days B) 12 days C) 52 days D) 60 days E) 10 2/3 days
10 2/3 daysxplanation:   2/10 + 4/15 + x/20 = 1   x = 32/3 = 10 2/3 days   Answer: 10 2/3 days
<result>E</result>
A can do a piece of work in 10 days and B can do it in 15 days and C can do it 20 days. They started the work together and A leaves after 2 days and B leaves after 4 days from the beginning. How long will work lost?