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When a number is subtracted from the number 8,12 and 20, the remainders are in continued proportion, Find the number ?
8-x / 12 –x = 12-x /20 –x
(8-x)(20-x) = (12 – x)(12 –x )
160 – 8x – 20x + x2 = 144 – 12x – 12x + x2
4x = 16
x = 4
By: Amit Kumar ProfileResourcesReport error
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