Posted by **raja harishchandra** on Friday, June 7, 2013 at 3:48am.

The integers from 1 through 10 (inclusive) are divided into three groups, each containing at least one number. These groups satisfy the additional property that if x is in a group and 2x≤10, then 2x is in the same group. How many different ways are there to create the groups

- math -
**aa**, Monday, June 10, 2013 at 10:02am
25

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