Answer:
Ralph age = 18.
Step-by-step explanation:
Given : Ralph is 3 times as old as Sara. In 6 years, Ralph will be only twice as old as Sara will be then.
To find : Find Ralph's age now.
Solution : We have given
Ralph is 3 times as old as Sara.
Let the Sara age = x
According to question :
Ralph age = 3 x .
After 6 year
Ralph age would be 3x + 6 = 2( x + 6 ).
According to question :
3x +6 = 2 ( x + 6).
3x + 6 = 2x +12 .
On subtracting both sides b 2x.
3x -2x + 6 = 12 .
x + 6 = 12 .
On subtracting both sides by 6
x = 12 -6.
x = 6.
Sara age = 6 .
Ralph age = 18.
Therefore, Ralph age = 18.
