Posted by **Anonymous** on Saturday, October 6, 2012 at 6:39pm.

Of 30 runners surveyed ,23 go running in the morning and 15 go running in the evening . Seven of the runners surveyed go running in both the morning and the evening .How many runners go running in the morning but not the evening?

- math -
**Ms. Sue**, Saturday, October 6, 2012 at 6:43pm
23 - 7 = ?

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