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Question Number 65951 by ketto2 last updated on 06/Aug/19

Commented by Tony Lin last updated on 06/Aug/19

if the son is x now ⇒his father is 30+x after 10 years ⇒40+x=3(x+10) ⇒x=5 so the son is 5 years old and his father is 35 now

ifthesonisxnow⇒hisfatheris30+xafter10years⇒40+x=3(x+10)⇒x=5sothesonis5yearsoldandhisfatheris35now

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