 
 <translate> Give stream of consciousness and then the final answer. Pipes A and B can fill a cistern in 8 and 24 minutes respectively. They are opened an alternate minutes. Find how many minutes, the cistern shall be full?
Options:
(A) 12 min
(B) 6 min
(C) 4 min
(D) 8 min
(E) 10 min <ibo> Kwuo ihe ị ga-eme ma gwazie gị ihe ị ga-eme. Ọwa mmiri A na B nwere ike imeju otu olulu mmiri n'ime nkeji asatọ nakwa n'ime nkeji iri abụọ na anọ. A na-emeghe ha nkeji ole na ole. Chọpụta nkeji ole, olulu mmiri ahụ ga-ejupụta? Nhọrọ: (A) Nkeji 12 (B) Nkeji isii (C) Nkeji anọ (D) Nkeji asatọ (E) Nkeji iri 