A man can row a boat of 48m/min in still water. The difference in time between rowing with and rowing against a current of 900m is 10min. Find the speed of the current.
要有詳細步驟 謝謝!
application of quadratic equations F.4 math 急
2008-09-26 2:51 am
回答 (1)
2008-09-26 3:45 am
✔ 最佳答案
The answer is as follows:圖片參考：http://i277.photobucket.com/albums/kk75/uncle_michael/20080925_mat_2.jpg?t=1222343101
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