2 7
3 4 5
1 6
EDFEW
The mean times three will be the total of all three numbers. Multiply the mean times three and subtract the sum of the two numbers from that total.
nine, ten and eleven. Three consecutive numbers that total thirty
4 8 16
The smallest consecutive three numbers that total 120 are... 39, 40 & 41.
EVERY three consecutive numbers add to a multiple of 3: Proof: numbers are n, n + 1 and n + 2. The total is 3n + 3 or 3(n + 1) This means that for any three consecutive numbers, the total is 3 times the middle number.
55
There are no three consecutive numbers with a sum of 170.
The mean times three will be the total of all three numbers. Multiply the mean times three and subtract the sum of the two numbers from that total.
The numbers are 110, 111 and 112.
44,45,46
55
Add them together, divide that total by three
nine, ten and eleven. Three consecutive numbers that total thirty
4 8 16
The smallest consecutive three numbers that total 120 are... 39, 40 & 41.
Add the three numbers together and divide that total by three; [a+b+c]/3=avg
55