Question

arlos father is four times as old as Arlo and the sum of their ages is 50 years how old is each

Answer 1

Arlo is 10, his father is 40, 10*4=40, 10+40=50.

Answer 2

Arlo is 10 because if Arlo's dad is 4 times older than him, that means that his dad is 40. 40+10=50.

There you go :)