Question
There are three numbers 'x', 'y' and 'z' (x < y <
There are three numbers 'x', 'y' and 'z' (x < y <
z) such that 'y' is equal to the average of 'x' and 'z'. 40% of 'z' is equal to 'x' and the difference between 'y' and 'z' is 15. Find the sum of all three numbers.
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