Question

If
2, 6=15
3, 9=30
4, 8=34
5, 15=78
Then :
6, 18=??
Show calculations with ans..

Answer 1

2*6+6/2=15
3*9+9/3=30
4*8+8/4=34
5*15+15/5=78
6*18+18/6=111

Answer 2

2, 6= 15 : (2 x 6) + 3 =15
3, 9= 30 : (3 x 9) + 3= 30
4, 8= 34 : (4 x 8) + 3 =35
5, 15=78: (5 x 15) + 3=78
6, 18= 111:(6 x 18) +3=111

Hope it helps ^_^