Question

i wanna ask that in first case "whom" has came and in second case "who" has came.. can anyone tell me why?​

Answer 1

Answer:

Whom is used for telling someone or addressing someone. Who is used for detail and more info.

Explanation:

In the first case, you were not explaining anything about the boy and simply said you met him yesterday. In the other case, you were a bit detailed because you said he was in a school dress. We use whom to inform people and use who for detail.