# rule of three

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## rule of three

n
(Mathematics) a mathematical rule asserting that the value of one unknown quantity in a proportion is found by multiplying the denominator of each ratio by the numerator of the other
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And now it's open, we are going out by Rule--the Rule of Three.
The world is filled with the proverbs and acts and winkings of a base prudence, which is a devotion to matter, as if we possessed no other faculties than the palate, the nose, the touch, the eye and ear; a prudence which adores the Rule of Three, which never subscribes, which never gives, which seldom lends, and asks but one question of any project,--Will it bake bread?
As difficult to decipher as a hieroglyphic inscription to the clerks, the vocation of the secretary and his usefulness were as plain as the rule of three to the self-interested.
You can work it out by Fractions or by simple Rule of Three, But the way of Tweedle-dum is not the way of Tweedle-dee.
The Rule of Three got both its name and its reason for existence from the standard three-degree glideslope of an ILS approach.
specified Thursday for a rule of three persons for espionage for the Israel
I had a rule of three weeks at a time away and a cushion on both sides.
Rome has promised its EU partners to bring its public deficit within the bloc's rule of three percent of gross domestic product this year by cutting its deficit to 2.
In the 1950s, the rule of three prevailed: Babies who were described with colic cried at least three hours, three days a week for three consecutive weeks.
I have two rules for pruning, my rule of two and my rule of three.
In a pediatric setting known to have a large number of abnormal size RBCs and a large number of hemoglobinopathies, we have found the Rule of Three to be a very useful tool.

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