Question

The sum jack & father's age 60 after 16 years there age would be

Answer 1

Answer:

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$jacks \: age \: + his \: fathers \: age = 60 \\ i \: consider \: jacks \: age \: = x \\ fathers \: age \: = y \\ x + y = 60 \\ x = 60 - y \\ y = 60 - x$