1. ## Age problem

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♣ Marilyn is three years younger than her friend Rosie. In seven years the product of their ages will be 5 more than thrice the product of their ages five years ago. How old are each at present?

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thank you very much! (million times)

2. Originally Posted by Hi888

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♣ Marilyn is three years younger than her friend Rosie. In seven years the product of their ages will be 5 more than thrice the product of their ages five years ago. How old are each at present?

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thank you very much! (million times)
Say Marilyn is now x years old

Then Rosie is now x + 3 years old

In seven years Marilyn will be x + 7 years old

Rosie will be x + 10 years old

Five years ago Marilyn was x - 5 years old

Rosie was x - 2 years old

So solve (x + 7)(x + 10) = 3(x - 5)(x - 2) + 5

Multiply it out first and simplify

3. Thanks

4. Originally Posted by Hi888
Thanks
Do not delete your original question, ever!
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5. Originally Posted by ThePerfectHacker
Do not delete your original question, ever!
-=USER WARNED=-

What did I did wrong?!?

6. When you ask a question and it's answered you don't need to erase it, or edit it. Keep it there so people can see the whole thread and if you have a new question post a new thread