Turtles Žofka and Julka

Gray wolf kept in his tent turtles Žofka and Julka, which together have 200 years. After 50 years, Julka will be two times older than Žofka. How old are the turtles?

Correct answer:

x =  150
y =  50

Step-by-step explanation:


x+y= 200; x+50 =2(y+50)

x+y= 200
x+50 =2·(y+50)

x+y = 200
x-2y = 50

Row 2 - Row 1 → Row 2
x+y = 200
-3y = -150


y = -150/-3 = 50
x = 200-y = 200-50 = 150

x = 150
y = 50

Our linear equations calculator calculates it.



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Do you have a system of equations and looking for calculator system of linear equations?
Do you want to convert time units like minutes to seconds?

You need to know the following knowledge to solve this word math problem:

Related math problems and questions: