Odpowiedzi

2010-04-01T20:16:40+02:00
C - 20 N 30E - 11.30
punkt B - 4S 20W
30 E + 20 W = 50
50 * 4 min = 200 min = 3h 20 min
11.30 - 3h 20 min = 8.10
B = 8.10
punkt A - 15N 50E
50 E - 30 E = 20
20 * 4 min = 80 min = 1h 20 min
11.30 + 1h 20 min = 12.50
A = 12.50