A man can row a distance of 5 km in 60 min with the help of the tide. The direction of the tide reverses with the same speed. Now he travels a further 25 km in 10 hours. How much time he would have saved if the direction of tide has not changed? Choose the correct choice from the following options:  A) 2  B) 5  C) 1  D) 6  E) 7
Explanation:   He covered 5 km in 1 hour , so he might cover 25 km in 5 hours.   But he took 10 hours.   He would have saved 10 â€“ 5 = 5 hours.   Answer: 5
<result>B</result>
A man can row a distance of 5 km in 60 min with the help of the tide. The direction of the tide reverses with the same speed. Now he travels a further 25 km in 10 hours. How much time he would have saved if the direction of tide has not changed?