Số học sinh nam là:

48 : (3+5) ×5 = 30 (học sinh)

Số học sinh nữ là:

48 - 30=18 (học sinh)

Đáp số:30 học sinh nam;18 học sinh nữ

=(18/21 + 3/21)+ (19/32 + 13/32)

=21/21 + 32/32

=1 + 1

=2

chọn A

My room is filled with twinkling lights which make it more beautiful. There is a large wardrobe on the left. There are many posters I bought for decoration. There is a covered bed. up by a pink blanket. There is a table with a lot of books for me to study