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#1 2008-03-31 01:47:54
- chetah
- Member
- Registered: 2008-02-15
- Posts: 32
Discret Math
Allen writes the consecutive integers 1, 2, 3, .n on a black. Then Barbara erases one of these integers. If the average of the remaining integers 35 , what is n and what integer was erased?
My solution is 36. I am correct?
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#2 2008-03-31 02:48:04
- mathsyperson
- Moderator
- Registered: 2005-06-22
- Posts: 4,900
Re: Discret Math
She can either write the integers up to 68 and then erase 1, or write the integers up to 70 and then erase 70. I'm not sure if that second one is allowed.
Why did the vector cross the road?
It wanted to be normal.
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