question_answer

A, B and C can fill a tank in 6, 8, 12 hours respectively. If the pipes are opened in order at 10 am, 11 am, 12 am. When will the cistern be filled? (approximately)

A) 1 P.M.

B) 1.30 P.M.

C) 1.50 P.M.

D) 2.00 P.M.

E) 2.20 P.M.