Question

robins grandmother is 7 times older than him. in 12 years, she will be 3 times as old as him. how old is robin?

Answer 1

6 year's old

Explanation:

Grandma is G and Robin is R

G=7R

G+12=3(R+12)

G+12=3R+36

7R+12=3R+36

7R-3R=36-12

4R=24

R=6

Robin is 6 years old

Answer 2

Explanation:

the answer either maybe somebody could help