Martha is twice as old as her younger brother. The sum oh their ages is 36. How old are they?

Answer 1

younger brother --- x years
Martha ----------- 2x years

x + 2x = 36

carry on

Answer 2

Mokgadi is twice as old as her brother.The sum of their ages is 36.what are their ages?

Answer 3

I think the brother is 12 and the sister is 24
12+24=36