Question 1187393: My sister is 14 years older than I am. The sum of our ages is 28. Find our ages
Answer by ikleyn(52794)   (Show Source):
You can put this solution on YOUR website! .
From 28 years, subtract the difference of ages of 14 years.
The difference, 28-14 = 14, is your doubled age.
Hence, your age is 14/2 = 7 years.
Then your sister is 7 + 14 = 21 years old.
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Solved mentally, without using equations.
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