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20-02-2022
Mathematics

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. Helmi's age and his son's age is in the ratio 10:3.
In 5 years' time, their total age will be 62 years.
How old is Helmi's son now?

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secondbreakfest secondbreakfest

20-02-2022

Answer:

12 years old

Step-by-step explanation:

let h = helmi's age and let s = son's age (right now)

10s = 3h

h + 5 + s + 5 = 62

h + s + 10 = 62

h + s = 52

3h + 3s = 156

10s + 3s = 156 (substitution)

13s = 156

s = 12

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