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Beliebt >

Anita is twice as old as Elena now. If the sum of their ages five years ago was 20, how old are they now?

Lösung

Anita is twice as old as Elena now. If the sum of their ages five years ago was 20, how old are they now?

Lösung

Elena^{'} s age is : 10

Anita^{'} s age is : 20

Schritte zur Lösung

Translate the problem into an equation:

2 x - 5 + x - 5 = 20

Löse nach

x, 2 x - 5 + x - 5 = 20 : x = 10

Finde age

Elena^{'} s age is : 10

Anita^{'} s age is : 20

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