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If x, y, and z are positive integers and 3x = 4y = 7z, then the least possible value of x + y + z is
Solution
LCM of 3, 4, 7 = 843x = 84Therefore, x = 28Similarly,4y = 84; y = 21 and7z = 84; z = 12Hence, x + y + z = 28 + 21 + 12...
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