In five continuous natural numbers, the largest number is 1.2 times of the smallest number I'll go to school tomorrow. My elder brother and elder sister will teach me to pull. Yes, I'll add another 20 points! Really, never cheat you!

In five continuous natural numbers, the largest number is 1.2 times of the smallest number I'll go to school tomorrow. My elder brother and elder sister will teach me to pull. Yes, I'll add another 20 points! Really, never cheat you!

Let the minimum number be X
1.2X=X+5
1.2X-X=5
0.2X=5
X=25
Maximum number: 25 + 5 = 30