Answer :
Let the numbers be x and y
[tex]5 + 2 = 7[/tex]
It implies that,
[tex]x :y = 5:2[/tex]
So, it also says that
[tex]x + y = 5 + 2 \\ x + y = 7[/tex]
The difference is
[tex]5 - 2 = 3[/tex]
So, last ratio is
[tex]7:3[/tex]
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