"Tom is 44.
His age + 6 is equal to 5/4th of (age-4), or 5x(age-4)/4. Multiply out by 4 to get rid of that divisor, and 4 x age + 24 = 5x(age-4), or 5x age-20. Add the 20 to both sides, and 4 x age + 44 = 5 x age, or 44 = Tom's age."
Well done if you got this!
Notes
Dedopulos, T., The Medieval Puzzle Collection (London, Cartlon Books Limited: 2014) p. 134
His age + 6 is equal to 5/4th of (age-4), or 5x(age-4)/4. Multiply out by 4 to get rid of that divisor, and 4 x age + 24 = 5x(age-4), or 5x age-20. Add the 20 to both sides, and 4 x age + 44 = 5 x age, or 44 = Tom's age."
Well done if you got this!
Notes
Dedopulos, T., The Medieval Puzzle Collection (London, Cartlon Books Limited: 2014) p. 134
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