Odpowiedzi

2009-12-06T21:04:24+01:00
15*E - 12.00

Pamiętamy, że 1* to 4 minuty

15*W - 10.00
obliczenia:
15*+15* = 30*
30 x 4 = 120 minut = 2 godziny
12.00 - 2h = 10.00

30*E - 13.00
30* - 15* = 15*
15 x 4 = 60 = 1h
12.00 + 1h = 13.00

10*E - 11.40
15 - 10 = 5*
5 x 4 = 20 minut
12.00 - 20 minut = 11.40

10*W - 10.20
15* + 10* = 25*
25 x 4 = 100 minut = 1h 40 min
12.00 - 1h 40 min = 10.20

120*E - 19.00
120 - 15 = 105*
105 x 4 = 420 = 7h
12.00 + 7h = 19.00

105*W - 5.10
105 + 15 = 120
120 x 4 = 480 minut = 6h 50min
12.00 - 6h 50 min = 5.10

pozdro