 
 <translate> Q: The average age of a class of 39 students is 15 years. If the age of the teacher be included, then the average increases by 3 months .Find the age of the teacher.
Options:
(A) 22
(B) 25
(C) 8
(D) 27
(E) 19
A: (B)
Explain how we arrive at this answer:  <ibo> Ajụjụ: Nkezi afọ ndụ nke klas nke ụmụ akwụkwọ 39 bụ afọ 15. Ọ bụrụ na e tinye afọ onye nkuzi, mgbe ahụ nkezi na-abawanye site na ọnwa 3. Chọta afọ onye nkuzi. Nhọrọ: (A) 22 (B) 25 (C) 8 (D) 27 (E) 19 A: (B) Kọwaa otú anyị si ruo ná nkwubi okwu a: 