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Mathematics 21 Online
OpenStudy (anonymous):

Dana is 2 years old. Her sister is half her age. When Dana is 100 years old, how old will her sister be?

OpenStudy (aaronandyson):

Let Dana age be 'd' and her sis 's' d = 2 so s = 1 if d = 100 then s = ?

OpenStudy (aaronandyson):

Keep in mind the s = 1 which is 1 less than 2

OpenStudy (aaronandyson):

You may now solve.

OpenStudy (anonymous):

50!

OpenStudy (aaronandyson):

@AdoomyG

OpenStudy (anonymous):

Sorry for wasting your time, I just wanted to give you guys a math teaser :p

OpenStudy (anonymous):

But you still get a medal ^-^

OpenStudy (aaronandyson):

Wrong. I suppose it shall be 99

OpenStudy (aaronandyson):

I agree half of 100 is 50.

OpenStudy (aaronandyson):

I know this was a math teaser btw :P

OpenStudy (anonymous):

;)

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