Question

Use 1 3 5 7 9 11 13 15 use only three digits and get answer of 30

Answer 1

your ans is 3! + 11 + 13 = 30 
 3! = 3*2*1 

Answer 2

9+1×(3) =30

11 - 1 × (3)=30

15-5×(3) =30

hope this helps you.