Question

DS
13.
Rihana's
age
is 3 years more than double the age of Koina. Three years ago, Rihana was
three times as old as Koina then. Find their present ages.
2007
71 D:​

Answer 1

Answer:

Koina Present age=3

Rihana Present age=9

Step-by-step explanation:

Let Koina's present age be - x

Riahana's present age - 2x+3

Three years ago-

Koina-x-3

Rihana-3(x-3)=3x-9

3x-9=x-3

3x-x=9-3

2x=6

x=3

Koina Present age=3

Rihana Present age=9