A boat while dowenstream in a reiver converd a distance of 50 miles at an averag

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A boat while dowenstream in a reiver converd a distance of 50 miles at an average speed of 60 miles per hour. While returning , because of the water resistance , it took 1 hour 15 minutes to cover the same distance What was the average speed during the whole journey?

Options:

A . 40 mph

B . 48 mph

C . 50 mph

D . 55 mph

Answer: Option B

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More Questions on This Topic :

Question 1. A boat travels 24 km upstream in 6 hours and 20 km downstream in 4 hours. Then the speed of boat in still water and the ....in still water and the speed of current are respectively.

Question 2. A man can row 6 km/hr in still water. If the speed of the current is 2 km/hr he takes 4 hours more in upstream than the ....hours more in upstream than the downstream. The distance is?

Question 3. The speed of a boat along the stream is 12 km/hr and against the stream is 8 km/hr. The time taken by the boat to sail 2....the boat to sail 24 km in still water is?

Question 4. A motorboat in still water travels at a speed of 36 km/hr. It goes 56 km upstream in 1 hour 45 monutes. The time taken b....to cover the same distance down the stream will be-

Question 5. P, Q and R are three towns on a river which flows uniformly. Q is equidistant from P and R. I row from P to Q and back i....my boat in still water with that of the river.

Question 6. A boat moves downstream at the rate of 1 km in $${\text{7}}\frac{1}{2}$$ minutes and upstream at the rate of 5 km an hou....is the speed of the boat in the still water?

Question 7. A boat takes half time in moving a certain distance downstream than upstream. The ratio of the speed of the boat in stil....boat in still water and that of the current is?

Question 8. A man rows 12 km in 5 hours against the stream and the speed of current being 4 kmph. What time will be taken by him to ....taken by him to row 15 km with the stream?

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Question 10. The speed of a boat downstream is 15 km/hr and the speed of current is 3 km/hr. Find the total time taken by the boat to....boat to cover 15 km upstream and 15 km downstream.

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