There are three continuous natural numbers. The second number is twice the first number, and the third number is five times the first number. What are the three natural numbers?

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• 1. Of the three consecutive natural numbers, the smallest one is x, and the average of the three numbers is X______ ．
• 2. Among the five continuous natural numbers, the sum of the first three numbers is exactly equal to the sum of the last two numbers. The middle number of the five continuous natural numbers is ()
• 3. The smallest of the five consecutive natural numbers is a, so what is the largest number? What is the sum of the five consecutive natural numbers?
• 4. Five continuous natural numbers, the smallest number is 4 / 5 of the largest number, then what is the smallest number
• 5. The sum of five continuous natural numbers is 550. What is the smallest of the five continuous natural numbers?
• 6. 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!
• 7. The sum of five consecutive natural numbers is 120, the largest of which is______ The smallest number is______ ．
• 8. The sum of five continuous natural numbers is 120. What is the smallest one? The formula,
• 9. Three continuous natural numbers, the smallest one is a, the other two are how many?
• 10. If the sum of three continuous natural numbers is m, then the minimum natural number is m______ ．
• 11. The average of five consecutive natural numbers is m. The sum of these five numbers is () and the maximum number is（
• 12. Three continuous natural numbers, the middle one is m, the sum of these three numbers is (). The average of these three numbers is ()
• 13. Three continuous natural numbers, the middle one is m, the average of these three numbers is ()
• 14. If the smallest of the three consecutive natural numbers is a, then the average of the three numbers is () A、a+b+c/3 B、abc/3 C、a+(a+1)+(a+2)/3 D、a+(a+1)/2
• 15. The average of three continuous natural numbers is m, and these three numbers are respectively ()
• 16. The sum of squares of five consecutive natural numbers is a multiple of 365, Give an example and prove it
• 17. There are three continuous natural numbers whose sum of squares is 365?
• 18. The sum of three continuous natural numbers is 36 Use the equation (equal to 11, 12, 13, find the equation)
• 19. The sum of three continuous natural numbers is equal to 78. Find the number of these three numbers and solve the equation
• 20. The sum of three continuous natural numbers is 153. What are the three numbers