Question

Three friends all have same ages that are consecutive integers. The sum of their ages is 180. What is the age of the oldest friend?

a) 61
b) 59
c) 62
d) 60

Answer 1

a) 61

The friend's ages are consecutive, therefore they are each one year apart. There are 3 friends whose ages add up to 180 in total.

`180 / 3 = 60`

In order to make three consecutive numbers, subtract one and add one to 60.

`60 - 1 = 59\\60 + 1 = 61`

You get 59, 60, and 61.

61 is the oldest age, that's your answer.