The sum of Sabrina's age and twice her sister's age is equal to their mom's age. If Sabrina's sister is two years older than her and their mom is 37, how old is sabrina?

Mathematics · High School · Tue Nov 03 2020

Answered on

Let the Sabrina's age be x

Her sister is 2 yrs older,  so Sabrina's sister age is x+2

Mother's age = 37

Now, according to question: sum of Sabrina and twice of her sister's age is equal to their mother's age 

So,

x +2( x + 2 )= 37 

x + 2x + 4 = 37

3x = 37 -4

3x = 33

x = 33/3

x = 11

 

Hence, Sabrina is 11 years old.

Related Questions