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Three positive numbers are in Arithmetic Progression (A.P). the sum of the squares of the three numbers is 155. while the sum of the numbers is 21. if the common difference is positive. find the value
Three positive numbers are in Arithmetic Progression (A.P). the sum of the squares of the three numbers is 155. while the sum of the numbers is 21. if the common difference is positive. find the values of x and y