Answers

2014-11-28T20:35:23+05:30
By using the factorial sign ! 

3 + 5 + 7 + 9 + 3! = 30

3! means that = 1*2*3
                      = 6

So we concluded that 

3 + 5 + 7 + 9 + 6 = 30
1 5 1
2014-11-28T21:28:12+05:30
3!+3!+3!+3!+3!=30

Note that 3!=3*2*1=6
1 5 1