Swimming Across River
49.6 هزار بار بازدید -
10 سال پیش
-
A swimmer crosses a moving
A swimmer crosses a moving river and ends up downstream. How long does it take the swimmer to cross?
10 سال پیش
در تاریخ 1393/07/24 منتشر شده
است.
49,642
بـار بازدید شده