My sister is half my age. Together, we are 22 years old. How old is my sister?

1 Answer

Answer :

A: To solve this problem, you can use the following equation:

My age + Sister's age = 22 years

Sister's age = My age / 2

Substituting the second equation into the first equation, we get:

My age + My age / 2 = 22 years

3/2 * My age = 22 years

My age = 22 years * 2 / 3

= 14.67 years

Therefore, my sister is 14.67 years / 2 = 7.34 years old.

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