Ram, Krish and Bhim can complete a work in 30 days. If Ram and Krish together can complete the same work in 40 days, then how long will Bhim take to complete it?	Choose the correct choice:
A) 60
B) 80
C) 100
D) 120
E) 140
Ram + Krish + Bhim’s work = 1/30   Ram and Krish’s work= 1/40   Bhim’s work = 1/30 - 1/40 = 1/120   ANSWER:120
<result>D</result>
Ram, Krish and Bhim can complete a work in 30 days. If Ram and Krish together can complete the same work in 40 days, then how long will Bhim take to complete it?