Question

solve this question ​

Answer 1

Answer:

1+5=18   3(1+5)=18  3+15=18

2+7=27 3(2+7)=27  6+21=27

3+9=36  3(3+9)=36  9+27=36

5+10=45 3(5+10)=45  15+30=45

Similarly,

4+20= ???   3(4+20)= ???   12+60=???   ???=72