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if a train runs at 40 km per hour it reach its destination late by 11 minutes but if it run at 50 km per hour it is late by 5 minute only. find the correct time for the train to complete its journey. |
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Answer» Let the correct time to COMPLETE the journey be x MIN. DISTANCE covered in (x + 11) min.= Distance covered in (x + 5) min at 50 km/hr ∴ (x+11)60 * 40 = (x+5)60 * 50 =x = 19 min. |
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