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John travelled a distance by a train for one hour 20 minutes at the speed of 60 km per hour, then by a bus for 54 minutes at the speed of 50 km per hour and then by a boat for one hour 36 minutes at the speed of 15 km per hour. Total distance travelled by him was:1. 149 km2. 154 km3. 104 km4. 125 km |
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Answer» Correct Answer - Option 1 : 149 km Given: Speed of train = 60 kmph Time taken to travel in train = 1 hour 20 mins Speed of bus = 50 kmph Time is taken to travel in bus = 54 mins Speed of boat = 15 kmph Time is taken to travel in boat = 1 hour 36 mins Calculations: Jhon traveled distance by train = 1 hour 20 mins × 60 kmph ⇒ (80/60) × 60 = 80 km Jhon travelled distance by bus = 54 minutes × 50 kmph ⇒ (54/60) × 50 = 45 km Jhon travelled by boat = 1 hour 36 mins × 15 km ⇒ (96/60) × 15 = 24 km Total distance travelled by Jhon = distance travelled by train + distance travelled by bus + distance travelled by boat ⇒ 80 + 45 + 24 = 149 km ∴ The total distance travelled by Jhon = 149 km |
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