 
 <translate> Q: At 15:00 there were 21 students in the computer lab. At 15:03 and every three minutes after that, 3 students entered the lab. If at 15:10 and every ten minutes after that 8 students left the lab, how many students were in the computer lab at 15:44 ?
Options:
(A) 7
(B) 14
(C) 25
(D) 27
(E) 30
A: (D) <ibo> Ajụjụ: N'elekere 15:00 e nwere ụmụakwụkwọ iri abụọ na otu n'ụlọọrụ kọmputa. N'elekere 3:03 nke ụtụtụ na nkeji atọ ọ bụla ọzọ, ụmụ akwụkwọ atọ na-abata n'ụlọ nyocha ahụ. Ọ bụrụ na n'elekere 15:10 na nkeji iri ọbụla mgbe nke ahụ gasịrị ụmụakwụkwọ 8 hapụrụ ụlọ nyocha ahụ, ụmụakwụkwọ ole nọ n'ụlọ nyocha kọmputa ahụ n'elekere 15:44? Nhọrọ: (A) 7 (B) 14 (C) 25 (D) 27 (E) 30 A: (D) 