A number when subtracted by 1/7 th of itself gives the same value as the sum of all the angles of a triangle. What is the number?

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Let the required number be 'p' We know, sum of angles in a triangle are 180 deg According to given data, p - p/7 = 180 7p - p = 180 x 7 => 6p = 1260 => p = 1260/6 = 210

A number when subtracted by 1/7 th of itself gives the same value as the sum of all the angles of a triangle. What is the number?

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