Denham.

(_crosses to table behind Undine_) You are behind your class, you
know. (_Looking over her._) Well, seven times three?

Undine.

Let's see--twenty-one?

Denham.

And how many shillings in that?

Undine.

I suppose two shillings and one penny.

Denham.

Nonsense! Don't suppose anything so un-English. How many pence in a
shilling?

Undine.

Twelve--I suppose.

Denham.

Well, twelve from twenty-one leaves--