Monday

April 21, 2014

April 21, 2014

Posted by **Phyl** on Wednesday, May 2, 2012 at 8:38am.

- Calculus -
**Steve**, Wednesday, May 2, 2012 at 10:30amIf there are n tourists, the cost each is 240/n

240/n - 4 = 240/(n+10)

n=20

check:

240/20 = 12

240/30 = 8 = 12-4

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