the present age of father and his son are 8x tan 3x at the time of the birth of the son the age of the father was 35 years present age of his son is
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because 3x years ago father age=35
so,5x=35
hence x=7years
present age of son is 3x=7×3=21
so,5x=35
hence x=7years
present age of son is 3x=7×3=21
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