Maxwell: And you were quite right. The girl ought to be the younger of the two: half his age and ten more. Rose :I do not quite understand. Maxwell: It is quite easy. The girl ought to be half the man is age and ten years more. If he is twenty six, she ought to be twenty-three. Half twenty-six is thirteen ;thirteen and ten are twenty-three. Rose : Yes, that. Seems about right. So if the man is thirty years old, the girl ought to be twenty-five. Maxwell : yes. And if he is sixty , she ought to be forty. And if he is eighty Rose :Eighty ! People do not get married at the age of eighty ! Maxwell :Believe me, they do. If he is eighty ,she ought to be fifty. And if he is a hundred and ten Rose :A hundred and ten! yes, perhaps you are right. So Lilian can marry George, I suppose. Maxwell :Who is George? Rose : He is a young man who is in love with Lilian. They want to get married ,but Lilian is older than George, and so I told her not to marry him.
Maxwell :Quite right. They must not get married.
Rose :But she is just half his age and ten years more, as you said.
Maxwell :But she is older than he is. You have just said so. Rose :that is right .He is eighteen and she is nineteen.
Maxwell :Half eighteen is nineteen Oh, I see. Yes!
Rose :Yes, she is nineteen ; she is seven years younger than I am. I am twenty -six.