Răspunsuri

2014-07-26T17:25:39+03:00
Folosim medoda de trei simplă 

900m.....8minute 
x m .......60min(1h)

x=60·900 : 8
x=5400:8
x= 6750 m . 
1 5 1
Cel mai inteligent răspuns!
2014-07-26T17:26:36+03:00
1h=60min

900m..........8min
x.................60min

x=900*60/8

x=450*60/4

x=450*30/2

x=450*15

x=6750m
2 5 2