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Primary 4 | Maths
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Date Posted: 6 years ago
Views: 310
please take clearer photos the next time!
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a hint...
in 5 years,
father age = father current age + 5
mother age = mother current age + 5
junxi age = junxi current age + 5
so the total of their ages in 5 years
= father age + mother age + junxi age
= father current age + 5 + mother current age + 5 + junxi current age + 5
= sum of all current ages + 15
in 5 years,
father age = father current age + 5
mother age = mother current age + 5
junxi age = junxi current age + 5
so the total of their ages in 5 years
= father age + mother age + junxi age
= father current age + 5 + mother current age + 5 + junxi current age + 5
= sum of all current ages + 15
Date Posted:
6 years ago
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