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?

A 8 km/hour
B 4 km/hour
C 10 km/ hour
D 6 km/hour

Correct Answer: 4 km/hour

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

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