It is as if we were to talk of the colour of sound, or the longitude of the rule-of-three.
I do not require to examine on this point, as I consider it to be a rule-of-three calculation.
And I was by no means one to puzzle it out, as I would a sum in the rule-of-three.
He got into the rule-of-three without having learned numeration, addition, subtraction, and division.
A man who's seen Injin fightin' don't go much on this here West Point fightin' by rule-of-three—but that ain't here or there!
Boys were never taught the rule-of-three until after they had learnt addition.
When it was found that he could not do decimals, he was put back to the rule-of-three, and then pronounced incurable.
It is as if we were to talk of the color of sound, or the longitude of the rule-of-three.