Question

2. A Two friends Kallis and Clerk take up the work of levelling the field. If they work separately they take 8 hours and 12 hours respectively to finish the work of levelling the ground. They decide to finish the work doing it alternately for one hour each and so on till it is finished. If they start work at 7 A.M., when will they finish the work?

(A) 4 P.M.
(B) 4:30 P.M.
(C) 5 P.M.
(D) 5:30 PM.
(E) None of these​

Answer 1

Answer:

none of these

none of this