They are 18, 19 and 20.
17 + 18 + 19 = 54
Since 57/3 = 19, we know that the middle number has to be 19. The other numbers will be the numbers contiguous to 19. Therefore, the three consecutive numbers which add up to 57 are: 18 + 19 + 20 = 57
The numbers are 5, 6, and 7.
54
16, 17, and 18
They are 18, 19 and 20.
17 + 18 + 19 = 54
The formula for this is x + (x+2) + (x+4) = 18 3x + 6 = 18 3x = 12 x = 4 So the three consecutive even numbers are 4, 6, and 8, which add up to 18.
5+6+7=18
Since 57/3 = 19, we know that the middle number has to be 19. The other numbers will be the numbers contiguous to 19. Therefore, the three consecutive numbers which add up to 57 are: 18 + 19 + 20 = 57
The numbers are 5, 6, and 7.
54
21
First find the number which is 1/3 of 51. This is 17. Thus any three numbers which average 17 will always add up to 51. For the numbers to be consecutive and have an average of 17, the middle number must be 17 and the two remaining numbers are 17-1 and 17+1 ie 16 and 18. So the three consecutive numbers are 16, 17 and 18.
5 + 6 + 7 = 18 Consecutive numbers means numbers following one another in sequence.
Divide 54 by three to find the mean (middle number), then subtract one for the low number and add one for the high number. Ex: 54 ÷ 3 = 18. 18 - 1 = 17; 18 + 1 = 19. The three consecutive numbers are 17, 18, and 19.