Anita, Indu and Geeta can do a piece of work in 18 days, 27 days and 36 days respectively. They start working together. After working for 4 days. Anita goes away and Indu leaves 5 days before the work is finished. Only Geeta remains at work from beginning to end. In how many days was the whole work done?	Choose the correct option.
A) 19 3/4 days	B) 29 3/4 days	C) 9 3/4 days	D) 16 days	E) 39 3/4 days
4/18 + (x -5)/27 + x/36 = 1   x = 29 3/4 days   ANSWER:29 3/4 days
<result>B</result>
Anita, Indu and Geeta can do a piece of work in 18 days, 27 days and 36 days respectively. They start working together. After working for 4 days. Anita goes away and Indu leaves 5 days before the work is finished. Only Geeta remains at work from beginning to end. In how many days was the whole work done?