SOLUTION: 16 years ago, my grandmother was 8 times older than me. After 8 years from today ,my grandmother will be thrice as old as I will be at that time. Eight years ago, what was the rati

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Question 897328: 16 years ago, my grandmother was 8 times older than me. After 8 years from today ,my grandmother will be thrice as old as I will be at that time. Eight years ago, what was the ratio of my age and my grandmother age?
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Your age today, y
Grandma's age today, g

____________________16 years ago__________Today_______8 years more
You__________________y-16_________________y_________y+8
Grandmother__________g-16=8(y-16)____________g_________g+8=3(y+8)

First, solve the system highlight_green%28system%28g-16=8%28y-16%29%2Cg%2B8=3%28y%2B8%29%29%29.

Use that solution for g and y to evaluate y-8 and g-8.