Question

Yancy is 2 years older than 3 times her younger sister's age. Her younger sister is 6 years old.How old is Yancy?

Answer 1

Yancy is 20 years old

Answer 2

Let Yancy's age be = x years

Let her sister's age be = y years

Given is , Yancy is 2 years older than 3 times her younger sister's age, so equation is formed like

$x=2+3y$  .... (1)

Also given, as her younger sister is 6 years old.

So, y=6

Putting y= 6 in equation (1)

$x=2+3(6)$

$x=2+18$

$x=20$

Hence, Yancy is 20 years old.