Question

The average age of three girls is 37. One

girl is 28, another is 43. What is the
age of the Third girl ​

Answer 1

Answer 25

Explanation:

Answer 2

40

Explanation:

The average of
`x` values with is equal to the sum of all of those values divided by
`x`.

Therefore, we have the following equation:

`(28+43+a)/(3)=37,\\28+43+a=37\cdot 3,\\28+43+a=111,\\a=111-43-28=\boxed{40}`