Question

Anna is the middle of three siblings whose ages are consecutive integers. If the sum of their ages is 8181, find Anna's age.

Answer 1

Answer:

2727

Step-by-step explanation:

If the integers are consecutive:

x + (x + 1) + (x+2) = 8181

3x + 3 = 8181

3x = 8178

x =2726

However, Anna is in the middle. So we add 1 to the age.

2726 + 1 = 2727

Answer 2

Answer:

27

Step-by-step explanation:

Say the youngest sibling is a. Anna would be a+1, and the oldest would be a+2. If the sum of all of them are 81, then 3a+3 = 81. minus three on both sides, and you get 78. So 3a = 78/3 = 26. if the youngest is 26, then Anna will be a + 1 so 27.