с) (17 мин 25 сек +3 час 48 сек) - 40
3.
а) | (53 км 286 м + 30 км 744 м) - 6
b) | 72 кг : 16г
c) | (37 a 24 мг – 2 а 48 м2 + 5a7м2) - 3;
d) | 3 час 37 мин – 2 час 48 мин;
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