 
 <translate> Passage: In the education systems of England, Northern Ireland, Wales and some other Commonwealth countries, sixth form (sometimes referred to as Key Stage 5) represents the final 1-3 years of secondary education (high school), where students (typically between 16 and 18 years of age) prepare for their A-level (or equivalent) examinations.

Question: Based on this passage, how old are you when you finish sixth form?
typically between 16 and 18 years of age <ibo> Passage: Na usoro agụmakwụkwọ nke England, Northern Ireland, Wales na ụfọdụ mba Commonwealth ndị ọzọ, ọkwa nke isii (mgbe ụfọdụ a na-akpọ Key Stage 5) na-anọchite anya afọ ikpeazụ nke 1-3 nke agụmakwụkwọ sekọndrị (ụlọ akwụkwọ sekọndrị), ebe ụmụ akwụkwọ (nke dị n'agbata afọ 16 na 18) na-akwadebe maka ule A-level (ma ọ bụ nke ha nhata).  Ajụjụ: Dị ka ihe e kwuru n'ebe a si kwuo, afọ ole ka ị ga-adị ma i mechaa ụlọ akwụkwọ sekọndrị? na-adịkarị n'agbata afọ iri na isii na afọ iri na asatọ 