Find the rule to fill in the number and solve the application problem~ 30 25 20 40 34 28 50 26 Find the rules and fill in the numbers Average problem: 198 natural numbers, 1,2,3 , 198 are divided into three groups averagely, and the average numbers of these three groups are equal. What is the sum of these three average numbers?

Find the rule to fill in the number and solve the application problem~ 30 25 20 40 34 28 50 26 Find the rules and fill in the numbers Average problem: 198 natural numbers, 1,2,3 , 198 are divided into three groups averagely, and the average numbers of these three groups are equal. What is the sum of these three average numbers?

25×2=30+20;
34×2=40=28；
SO 2 ×? = 50 + 26 = 76;
=38；
Average = (1 + 2 +.. + 198) △ 3 △ 3
=（1+198）×198÷2÷9
=199×11
=（200-1）×11
=2200-11
=2189；
I'm very glad to answer your questions. Skyhunter 002 will answer your questions
If you don't understand this question, you can ask,