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## Answers

2) 11 + 15 + (5 - 1) = 30

3) 9 + 13 + (5 + 3) = 30

This is how you can solve it. There are of course more equations that can be formed but you get the basic idea, don't you?

**The basic idea is that an even number of odd numbers is needed to form an even solution.**

15+11+{5-1}=30 as 5-1=4 so we can take 4 in exchange with 5-1and if we add 15+11+4we get 30