Question 1096710
The ratio of the ages of two sisters is 4:3 , the younget sister is three years older than the younger one . how old is the younger sister
<pre>Makes ABSOLUTELY NO SENSE. 
There are two (2) sisters so one is the <b><u>YOUNGER</b></u> sister and the other is the <b><u>OLDER</b></u> sister.
Let MULTIPLICATIVE FACTOR be x
Then younger sister is 3x and older sister is 4x
As the YOUNGER is 3 years YOUNGER, we get: 3x = 4x - 3
3x - 4x = - 3
- x = - 3
x, or MULTIPLICATIVE factor = {{{matrix(1,3, (- 3)/(- 1), "=", 3)}}}
Younger sister, or {{{highlight_green(matrix(1,6, Y, "=", 3(3), "=", 9, years-old))}}}