Question

1+5= 18
2+10= 36
3+15= 54
4+20= ???​

Answer 1

Answer:

24 x 3 =72

Step-by-step explanation:

because 5 +1 = 6 x3 = 18

2-10= 12 x 3 =36

so, please follow me

Answer 2

Answer:

First, it is 1+5=18.

Then 2(1+5=18) = 2+10=36…and so on

Continuing the pattern, we will get;

4+20=72