SOLUTION: James is now 3 times as old as Arthur. In 10 years, James will be twice as old as Arthur will be then. Find their present ages

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Question 1045680: James is now 3 times as old as Arthur. In 10 years, James will be twice as old as Arthur will be then. Find their present ages
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Arthur's age now=x
James's age now=3x
2(x+10)=(3x+10) twice Arthur's age in 10 years will be James's age in 10 years
2x+20=3x+10, distributing
-x=-10
x=10 years Arthur's age ANSWER
James is now 30 ANSWER
in 10 years, Arthur will be 20 and James 40, twice as much