逆水速度:(5×2×4)÷(5-4),
=40(千米/时);
顺水速度:40×5÷4=50(千米);
船速:(50+40)÷2=45(千米/时);
答:这条船在静水中每小时行45千米;
故答案为:45.
一条轮船在两码头间航行,顺水航行需4小时,逆水航行需5小时,水速是每小时5千米,这条船在静水中每小时行_千米.
一条轮船在两码头间航行,顺水航行需4小时,逆水航行需5小时,水速是每小时5千米,这条船在静水中每小时行______千米.
数学人气:609 ℃时间:2019-10-11 16:49:06
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