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Beliebt Word Problems >

Two years ago John was three times as old as Frank. Five years from now John will be twice as old as Frank. what is the sum of their ages right now?

Lösung

Tw o ye a rs a g o J o hn w a s t h ree t im es a s o l d a s F r ank . F i v e ye a rs f ro m n o w J o hn w i ll b e tw i ce a s o l d a s F r ank . w ha t i s t h e s u m o f t h e i r a g es r i g h t n o w ?

Lösung

the sum of their ages : 32

Schritte zur Lösung

Translate the problem into an equation:

x - 2 = 3 (y - 2), x + 5 = 2 (y + 5)

x - 2 = 3 (y - 2), x + 5 = 2 (y + 5) : x = 23, y = 9

Finde the sum of their ages :

32

the sum of their ages : 32

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