When 1/7 of a number is subtracted from the number itself, it gives the same value as the sum of all the angels of a triangle. What is the number?

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Accepted Answer

Let the number be P. According to the question, P - P/7 = 180 ⇒ 6P/7 = 180 ∴ P = 180 x 7/6 = 210

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