Question

If 1+2=9,2+5=21,5+11=48,7+15=66 then 4+20=?​

Answer 1

hii mate here is your answere. ....

72

Answer 2

Answer: 72

Step-by-step explanation:

1+2= 9 (3×3) is 9

2+5=21 (7×3) is 21

5+11=48 (16×3) is 48

7+15= 66 (22×3) is 66

4+20=72 (24×3) is 72

All numbers are added then multiplied by 3