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1----250 000cm=2,5
19---x
x=19*2,5km/1
x= 47,5km
/ - kreska ułamkowa (ta jedynka jest pod kreską ułamkową)
pozdrawiam ;p
1cm = 250 000 cm
1cm = 2500 m
1cm = 2,5 km
1cm = 2,5 km
19cm = x
x = 47,5 km
250000*19=4750000cm=47500m=47,5km