SOLUTION: I am now four times as old as my sister. When I am four times as old as I am now, my sister will still be less than thirty years old. How old is she now?

Question 972566: I am now four times as old as my sister. When I am four times as old as I am now, my sister will still be less than thirty years old. How old is she now?

Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
b,s brother, sister;
x, more years;

, .

This looks like two simultaneous statements in variables s and x.

Sister could be between 0 years and 1 year 10.5 months, exclusive.
Answer by MathTherapy(10553) (Show Source): You can put this solution on YOUR website!

I am now four times as old as my sister. When I am four times as old as I am now, my sister will still be less than thirty years old. How old is she now?

Sister's age, or , which suggests that sister can either be 1 year-old, or 2 years-old.
RELATED QUESTIONS
My sister is half my age. Next year she will be three times as old as I was thirteen... (answered by chibisan)
i was five times as old as my sister five years ago, and i am three times older than her... (answered by JenniferTutors)
I was five times as old as my sister five years ago, and I am three times older than her... (answered by scott8148)
I am four times as old as my daughter. In 20 years time I will be as twice as old as she. (answered by CharlesG2)
I am 30 years old and my sister is 10. I need an equation to figure out how old my sister (answered by stanbon)
When I was 2 years my sister was twice my age; Now, I am 5 years old and My mum is 5... (answered by josmiceli)
from a teachers worksheet: i am four times as old as my daughter, she was born when i... (answered by josmiceli)
i am 3 times as old as my daughter. in 12 years time i will only be twice as old as my... (answered by CubeyThePenguin)
I am 6 years older than my sister what was the number of years is my sister age when I... (answered by rfer,Alan3354)