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By rowing, an boartman needs 4 hours for a kilometer hourney of 15 kilometers, He is able to go 5 kilometers with the currect and he could manage 3 kilometer against the current. What is his speed of rowing?

Created: 2 years ago | Updated: 2 years ago

Updated: 2 years ago

8 km/hour

4 km/hour

10 km/ hour

6 km/hour

জাহাঙ্গীরনগর বিশ্ববিদ্যালয় B ইউনিট উচ্চতর গণিত সমতলে বস্তুকণার গতি (Motion of particles in a plane)

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