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A train covered a certain distance at a uniform speed. If the train had been 6 km/hr faster than it would have taken 4 hours less than tit scheduled time. And, if the train were slows by 6 km/hr, then the train would have take 6 hours more than the scheduled time. The lengt1 of the journey is `700\ k m` b. `720\ k m` c. `740\ k m` d. `760\ k m`

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RS AGGARWAL-TIME AND DISTANCE-All Questions
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