Question

The sum of three consecutive numbers is 129. Find the three numbers.

a. 42, 43, 44
b. 42, 45, 46
c. 43, 44, 45
d. 41, 43, 45

Answer 1

To find the three consecutive numbers whose sum is 129, we can set up an equation and solve for the numbers. The three consecutive numbers are 42, 43, and 44.

Step-by-step explanation:

To find the three consecutive numbers whose sum is 129, we can set up an equation. Let's call the first number x. The next two consecutive numbers would be x+1 and x+2. So, the equation would be: x + (x+1) + (x+2) = 129. By simplifying the equation, we get: 3x + 3 = 129. Subtracting 3 from both sides gives us: 3x = 126. Dividing both sides by 3, we find that x = 42. Therefore, the three consecutive numbers are 42, 43, and 44. So, the correct answer is option a. 42, 43, 44.