Problem Mary is 24 years old. Mary is twice as old as Anna was when Mary was as old as Anna is now. How old is Anna now?

Answer Key

18 yrs old

Solution

$A - 12 = 24 - A$

$2A = 36$

$A = 18 ~ \text{yrs old}$

I'm pretty sure the answer is 16. Shouldn't it be?

You may show your solution for us to evaluate.

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I'm pretty sure the answer is 16. Shouldn't it be?

You may show your solution for us to evaluate.