Given:
Ratio of father's age to son's age: 7 : 4
Product of their ages: 6300
Solution:
Let the father's age be 7x.
Let the son's age be 4x.
Product of their ages: (7x) (4x) = 6300
28x² = 6300
x² =
x² = 225
x = 15
Son's age = 4x
Son's age = 4 15
Son's age = 60
The age of the son is 60 years.
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