Question
If 28.9 : x :: x : 36.1, and x > 0, then find the value
of x.Solution
28.9 : x :: x : 36.1 {28.9/x} = {x/36.1} 28.9 x 36.1 = x² x² = 1043.29 x = √{1043.29} The value of x is 32.3
A boy’s age is 140% of what it was 5 years ago, but 65% of what it will be after 10 years. What is his present age?
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