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False (The Rule of)


A method of solving certain mathematical questions generally done by equations. Suppose the question is this: “What number is that whose half exceeds its third by 12?” Assume any number you like as the supposed answersay 96. Then, by the question, 96 ÷ 2 = 96 + 3 + 12, or 48 = 32 + 12, i.e. 54, but 48 does not equal 54, the latter is 16 too much.

Well, now state by rule of proportion thus, 16: 12: : 96 to the answer which is 72, the number required.

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Entry taken from Dictionary of Phrase and Fable, edited by the Rev. E. Cobham Brewer, LL.D. and revised in 1895.

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Fall of Man (The)
Fall of the Drop (The)
Fall Out of (To)
Fall Short of (To)
Fall Together by the Ears (To)
Fall Upon One’s Feet (To)
Falling Bands
Falling Sickness
Falling Stars
Fallow Land
False (The Rule of)
False Ceiling
Falutin (High)
Familiar Spirits
Fan-light (A)

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