Mathematics: Mark s dad is three times older than Mark. Mark s sister is 2 years younger than Mark. (3m) The sum of their ages is 48. How old are Mark, his sister, and his dad?

It b because if you 5x5 10 and then multiple by 3...

Mark s dad is three times older than Mark. Mark

Bladedrose2351

01.04.2022

Age of Mark =10 years

Age of Mark's dad =30 years

Age of Mark's sister years

Step-by-step explanation:

Let age of Mark be years.

Mark's dad is three times older than Mark

Age of her Mark's dad =3x

Mark's sister is 2 years younger than Mark

Age of Mark's sister =(x-2) years

The sum of their ages is 48.

$x+3x+x-2=48\\5x-2=48\\5x=50\\x=10$

Age of Mark =x=10 years

Age of Mark's dad =3x=3(10)=30 years

Age of Mark's sister =x-2=10-2=8 years

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