Un calator a parcurs 68 km in 3 zile . stiind ca in primele zile aun calator a parcurs 56 km in 3 zile . stiind ca in primele zile a parcurs 48 km in ultimele doua zile a parcurs 36 km afla cati km a parcurs calatorul in fiecate zi .

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Răspunsuri

2014-05-24T09:30:11+03:00
A+b+c=68
a+b=48
b+c=36
c=68-48
c=20
b+20=36
b=36-20
b=16
a+16=48
a=48-16
a=32
v.32+16+20=68
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