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The wheel of an engine of 300 cm in circ...

The wheel of an engine of 300 cm in circumference makes 10 revolutions in 6 seconds. What is the speed of the wheel (in km/h)?

A

18

B

20

C

27

D

36

Text Solution

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The correct Answer is:
A
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ARIHANT SSC-TIME, SPEED AND DISTANCE-EXERCISE LEVEL 1
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  2. Two men, B and C run around a circular track of length 500m in opposit...

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  3. The wheel of an engine of 300 cm in circumference makes 10 revolutions...

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  4. A man can row downstream at 12 km/h and upstream at 8 km/h. What is th...

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  5. A man can row upstream at 15 km/h and downstream at 21 km/h. The speed...

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  6. A boat moves downstream at 1 km in 5 minutes and upstream at 1 km in 1...

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  7. A man rows downstream 60 km and upstream 36 km, taking 4 hours each ti...

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  8. A man can row 5 km/h in still water. If the rate of current is 1 km/h,...

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  9. A man can swim 5 km/h in still water. If the speed of current be 3 km/...

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  10. A boat covers 48 km upstream and 72 km downstream in 12 hours, while i...

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  11. A motor boat takes 2 hours to travel a distance of 9 km downstream and...

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

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

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

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

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

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

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

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

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

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