Question 980812: Bill and Ben have a combined age of 91 yrs , Bill is now twice as old as Ben was, when Bill was as old as Ben is now .How old are Bill and Ben ??
Found 2 solutions by Boreal, MathTherapy:
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website! Bill is x
Ben is 91-x
number of years between the two is x-(91-x)=2x-91
When Bill was Ben's age, 2x-91 years ago, Bill was x-(2x-91)=91-x years old.
That 91-x is 2*the age of Ben at that time.
Ben is 91-x, and from that is subtracted 2x-91. That makes Ben 182-3x years old.
Therefore, 91-x=2(182-3x)
91-x=364-6x
5x=273
x=54.6
91-x=36.4
18.2 years ago, Bill was 36.4 years old, Ben's age, and Ben was 18.2 years old, half as much.
Bill is 54.6 years old
Ben is 36.4 years old
Answer by MathTherapy(10552)  (Show Source):
You can put this solution on YOUR website!
Bill and Ben have a combined age of 91 yrs , Bill is now twice as old as Ben was, when Bill was as old as Ben is now .How old are Bill and Ben ??
Bill's older!!
Bill's current age: 
Ben's current age: 
|
|
|
