The average age of man and his son is 35 years.the ratio of their ages is 5:2respectively.what is son's age?
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The present age of son is 20.
Solution:
The average age of a man and his son = 35
The total age of man and his son = 35 * 2 = 70
Let the age of man and his son be 5x, 2x.
5x + 2x = 70
7x = 70
x = 10
The present age of son is 20.
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