Answer:
80
Step-by-step explanation:
You want the present sum of the ages of three persons, given that the sum 7 years ago was 59.
Sum
The intervening 7 years have added 7 to each of their ages, so the sum is now ...
59 +7 +7 +7 = 80
The sum of their present ages is 80.
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Additional comment
The sum of ratio units is 20, so each represents 4 years. Their current ages are 20, 28, 32.
