father is 30 years older than his son the sum of their ages is 42 son's age and father's age?
please send a picture of the sum for better understanding
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Step-by-step explanation:
Father 's age is 30years older than son 's age.
the sum of theirs' age is 42 age.
the age of son is 12 ,as 42 - 30 =12
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