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A man can row 15 km/h in still water and...

A man can row 15 km/h in still water and he finds that it takes him twice as much time to raw up than as to row down the same distance in the river. The speed of the current (in km/h) is :

A

6 km/h

B

6.5 km/h

C

4.5 km/h

D

5 km/h

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The correct Answer is:
D
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ARIHANT SSC-TIME, SPEED AND DISTANCE-EXERCISE LEVEL 1
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  2. A motor boat takes 2 hours to travel a distance of 9 km downstream and...

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  3. A man can row 15 km/h in still water and he finds that it takes him tw...

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  4. A motor boat takes 12 hours to go downstream and it takes 24 hours to ...

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  5. The speed of a boat in upstream is 2/3 that of downstream. Find the ra...

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  6. The difference between downstream speed and upstream speed is 3 km/h a...

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  7. A boat which sails at 10 km/h in still water starts chasing, from 10 k...

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  8. A motor boat went downstream for 120 km and immediately returned. It t...

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  9. A motor boat went downstream for 120 km and immediately returned. It t...

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  10. A boat sails 15 km of a river towards upstream in 5 hours. How long wi...

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  11. A boat takes 5 hours more while going back in upstream than in downstr...

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  12. A boat takes 7 hours to go from P to R, through a midpoint Q, but it t...

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  13. Malla can row 40 km upstream and 55 km downstream in 13 h and 30 km up...

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  14. In a kilometre race, A can give B a start of 20 m and also in a half k...

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  15. In a kilometre race, A can give B a start of 20 m and also in a half k...

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  16. In a 1600 m race, A beats B by 80 m and C by 60 m. If they run at the ...

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  18. A runs 7/4 times as fast as B. If A gives B a start of 300 m, how far ...

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  19. A beats B by 100 m in a race of 1200 m and B beats C by 200 m in a rac...

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