Speed of a boat in standing water is 9 kmph and the speed of the stream is 1.5 kmph. A man rows to a place at a distance of 105 km and comes back to the starting point. The total time taken by him is_________?

Related Mcqs:

1. The speed of a boat in upstream is 60 kmph and the speed of the boat downstream is 80 kmph. Find the speed of the boat in still water and the speed of the stream?

   A. 70, 10 kmph
   B. 35, 27 kmph
   C. 50, 60 kmph
   D. 45, 55 kmph

2. The time taken by a man to row his boat upstream is twice the time taken by him to row the same distance downstream. If the speed of the boat in still water is 42 kmph, find the speed of the stream?

   A. 12 kmph
   B. 13 kmph
   C. 14 kmph
   D. 15 kmph

3. A man can row a boat at 20 kmph in still water. If the speed of the stream is 6 kmph, what is the time taken to row a distance of 60 km downstream?

   A. 20/6 hours
   B. 27/2 hours
   C. 30 hours
   D. 30/13 hours

4. A man whose speed is 4.5 kmph in still water rows to a certain upstream point and back to the starting point in a river which flows at 1.5 kmph, find his average speed for the total journey?

   A. 8 kmph
   B. 4 kmph
   C. 2 kmph
   D. 10 kmph

5. The current of a stream at 1 kmph. A motor boat goes 35 km upstream and back to the starting point in 12 hours. The speed of the motor boat in still water is_________?

   A. 6 kmph
   B. 7 kmph
   C. 8.5 kmph
   D. 8 kmph

6. The speed at which a man can row a boat in still water is 15 kmph. If he rows downstream, where the speed of current is 3 kmph, what time will he take to cover 60 metres?

   A. 10 seconds
   B. 15 seconds
   C. 20 seconds
   D. 12 seconds
   E. None of these

7. A man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream. The ratio of the speed of the boat (in still water) and the stream is________?

   A. 2 : 1
   B. 3 : 1
   C. 3 : 2
   D. 4 : 3

8. The current of a stream runs at the rate of 4 kmph. A boat goes 6 km and back to the starting point in 2 hours, then find the speed of the boat in still water?

   A. 10 kmph
   B. 21 kmph
   C. 8 kmph
   D. 12 kmph

9. A man covered a certain distance at some speed. If he had moved 3 kmph faster, he would have taken 40 minutes less. If he had moved 2 kmph slower, he would have taken 40 minutes more. What is the the distance in km?

   A. 36
   B. 52
   C. 41
   D. 40

10. A man can row downstream at 18 kmph and upstream at 10 kmph. Find the speed of the man in still water and the speed of stream respectively?

    A. 13, 3
    B. 12, 6
    C. 15, 3
    D. 14, 4