SOLUTION: Minh is 16. His parents are both the same age. The three of them have lived a total of 100 years. How old are his parents?

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Question 573622: Minh is 16. His parents are both the same age. The three of them have lived a total of 100 years. How old are his parents?
Answer by mathsmiles(68) About Me  (Show Source):
You can put this solution on YOUR website!
Minh is 16
His parents are each X years old.

If we add their ages, we get 100 yrs old.
100 = 16 + X + X
100 = 16 + 2X subtracting 16 from each side:
84 = 2X dividing each side by 2:
42 = X

Each of Minh's parents is 42 yrs old.