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A runs twice as fast as B and B runs ...

A runs twice as fast as B and B runs thrice as fast as C. The distance covered by C in 72 minutes, will be covered by A in `12\ m inu t e s` b. `\ 16\ m inu t e s` c. `18\ m inu t e s` d. `24\ m inu t e s`

A

18 min

B

24 min

C

16 min

D

12 min

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The correct Answer is:
D
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S CHAND IIT JEE FOUNDATION-DISTANCE TIME AND SPEED -QUESTION BANK -14(a)
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  2. Excluding stoppages, the speed of a train is 45 km/hr and including st...

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  3. A locomotive driver travelling at 72 km/hr finds a signal 210 metres a...

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  4. A runs twice as fast as B and B runs thrice as fast as C. The dista...

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  5. A car runs at a speed of 40 km/hr when not serviced and runs at 60 km/...

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  6. A train starts from Agra to Mathura at a speed of 60 km/hr and reaches...

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  7. Samir drove at the speed of 45 km/hr from home to a resort. Returning ...

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  8. A certain distance is covered at acertain speed. If half of the distan...

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  9. Paschini Express left Delhi for Mumbai at 14.30 hrs travelling at a...

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  10. A and B start simultaneously from a certain point in North and South d...

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  11. The distance between Bandel and Asansol is 100 km. A leaves Bandel for...

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  12. A star is 8. 1xx10^(13) km away from the earth. Suppose light tr...

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  13. A takes 2 hours more than B to walk d km, but /it A doubles his ...

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  14. A boy is running at a speed of p kmph to cover a distance of 1 k...

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  15. A walks at a uniform rate of 4 km an hour; and 4 hours after his st...

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  16. An express train travelled at a average speed of 100 kmph stopping ...

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  17. Two trains start form stations A and B and travel towards each othe...

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  18. In a kilometre race, A beats B by 30 seconds and B beats C by 15...

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  19. A man takes 6 hours 30 min in going by a cycle and coming back by s...

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  20. A students rides on a bicycle at 8 km/hr and reaches his school 2.5 mi...

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