A girl cycles from Lucknow to her home, a distance of 96 km, taking a rest of 6 minutes for every 6 km if her speed is 250 meters per minute. Then how much time will it take him to reach her home?
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4 hour 44 min
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5 hour 45 min
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6 hour 30 min
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7 hour 54 min
D
Correct answer
Explanation
Speed = 250 m/min = 0.25 km/min. Distance = 96 km. For every 6 km: cycling time = 6/0.25 = 24 min, plus 6 min rest = 30 min per segment. Number of segments = 96/6 = 16. Total cycling time = 16 × 24 = 384 min. Rest periods = 15 intervals × 6 = 90 min. Total time = 384 + 90 = 474 min = 7 hours 54 minutes.