SOLUTION: Four years ago henry was three times as old as alfred. Three years hence he will twice as old. Find the present age

SOLUTION: Four years ago henry was three times as old as alfred. Three years hence he will twice as old. Find the present age

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Question 933326: Four years ago henry was three times as old as alfred. Three years hence he will twice as old. Find the present age
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Four years ago,

1.
.
.
.

2.
Substituting from eq. 1,

Then,

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