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A boat running downstream covers a d...

A boat running downstream covers a distance of 30 km in 2 hours . While coming back the boat takes 6 hours to cover the same distance . If the speed of the current is half of that of the boat then what is the speed of the boat in kmph ?

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The correct Answer is:
x = 10 km/h
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MAHENDRA-BOAT & STREAM-EXERCISE
  1. A boat running downstream covers a distance of 30 km in 2 hours...

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  2. In one hour,a boat goes 11 km along the stream and 5 km against the st...

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  3. A boat running down stream covers a distance of 16 km in 2 hours ...

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  4. A boatman goes 2 km against the current of the stream in 1 hour and go...

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  5. A man can row three-quarters of a kilometre against the stream in 11(1...

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  6. A man takes twice as long to row a distance against the stream as to r...

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  7. A boat running upstream takes 8 hours 48 minutes to cover a certain di...

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  8. If a boat goes 7 km upstream in 42 minutes and the speed of the stream...

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  9. The speed of boat in downstream is 15 km/hr and the speed of the curre...

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  10. A man rows at the rate of 5 kmph in still water and his rate against t...

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  11. Boat can travel with a speed of 13 km/hr in still water. If the speed ...

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  12. A boatman can row 2 km against the stream in 20 minutes and return i...

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  13. A boatman can row 48 km downstream in 4 hr. If the speed of the curren...

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  14. A man can row at a speed of 10 km/hr in still water to a certain upstr...

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  15. A boat travels upstream from B to A and downstream from A to B in 3 ...

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  16. A boat travels 2 km upstream in a stream flowing at 3 km/hr and then r...

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  17. A man swimming in a stream which flows 1(1)/(2) km/hr finds that in a ...

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  18. A boat travels upstream from B to A and downstream from A to B in 3 ...

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  19. A man rows upstream 12 km and downstream 28 km taking 5 hours each tim...

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  20. Twice the speed downstream is equal to the thrice the speed upstream, ...

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  21. A man can swim 3 km/hr in still water. If the velocity of the stream ...

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