If there are three consecutive even numbers, and the smallest one is a, then the average of the three numbers is expressed as () A. aB. 2aC. a+2D. 3a+4
(a + A + 2 + A + 4) 3 = (3a + 6) 3 = a + 2, so C
RELATED INFORMATIONS
- 1. There are seven consecutive even numbers, of which the largest number is three times the smallest number. Find the first number
- 2. There are 7 consecutive even numbers. The maximum number is 3 times of the minimum number. Find these 7 numbers
- 3. It is known that the largest number in seven consecutive even numbers is three times of the smallest number
- 4. The sum of three consecutive even numbers is sixty. What are the three numbers
- 5. From 1, 2, 3 In 2008, take any two numbers, then the sum of the two numbers is the probability of even numbers
- 6. There are five numbers 1,2,3,4,5. If you want to find any two of them, the sum of them is the probability of even numbers
- 7. What is the probability that any one of the four numbers 0, 1, 2 and 3 is even?
- 8. Take any two numbers from the four numbers 1, 2, 3 and 4, and calculate the probability that one of the two numbers is odd and the other is even
- 9. The probability that any four out of ten numbers 0,1,2,..., 9 can be arranged into an even four digit number It can be repeated
- 10. In the ten natural numbers of 0.9, take any four different numbers to find the probability of forming a four digit even number
- 11. With 0, 1, 2, 3, you can set up () different even numbers
- 12. The sum of three consecutive even numbers is 10 greater than the largest one. The sum of these three consecutive even numbers is______ .
- 13. The sum of three consecutive even numbers is 60. What's the number in the middle
- 14. Starting from 2, add 101 addends, and find the sum of these even numbers
- 15. Starting from 2, continuous even numbers are added. The sum of them is shown in the following table Sum of addends (s) 1 2=1×2 2 2+4+6=2*3 3 2+4+6=12=3*4 4 2+4+6+8=20=4*5 5 2+4+6+8+10=30=5*6 According to the law of the above question: 102 + 104 + 106 + +The value of 2002 (writing process required)
- 16. Some people say, "in any four natural numbers, the difference between at least two numbers is a multiple of three." is this sentence right? What do you think?
- 17. : multiples of all 5 in natural numbers () Multiples of all 5 in natural numbers () A. They're all composite numbers B. they're all even numbers C. they're all odd numbers D. We can't be sure
- 18. 1 is the factor of any nonzero natural number, and any nonzero natural number is a multiple of 1
- 19. In any six different non-zero natural numbers, the difference between at least two numbers is a multiple of 5. Why?
- 20. Write five non-zero natural numbers at will, and you can find two numbers, so that the difference between the two numbers is a multiple of 4. Why It should be more detailed and easy to understand