SOLUTION: When Mary is twice as old as Frank, then I shall be 17 years old.
But Mary was 23 when Frank was twice as old as me.
That’s what John said.
How old was John when Frank w
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Question 1155594: When Mary is twice as old as Frank, then I shall be 17 years old.
But Mary was 23 when Frank was twice as old as me.
That’s what John said.
How old was John when Frank was ten?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
=== M. F J
2x. x. 17
23. 2y. y
now 2x-23=x-2y
and x-2y=17-y
Therefore, x=23-2y
and x=17+y
so 17+y=23-2y
3y=6
y=2 x=19 and 2x=38
so it is 23 4 2
meaning that it is
38. 19 17
23 4. 2
So when Frank was 10, John was 8 ANSWER
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