Question

Urgent!
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exercitiul 1 subiectul al 3 lea

Answer 1

notam cu x lungimea drumului

x-2/5x=y

y-y/2=12 km ⇒ y=2×12  ⇒y=24

y=3/5×x

x=24×5/3

x=40

2/5×x=(ampl;cu 20)=40/100x×40=16%

1 zi=2/5

2 zi=1/2

3 zi=restul din12km