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A bus can cover a distance of 120 km in 3 hours. If the speed of the bus is increased by 20% for the next 3 hours, find the distance covered by the bus in these three hours.
  • a)
    146 km
  • b)
    144 km
  • c)
    142 km
  • d)
    140 km
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A bus can covera distance of 120 km in 3 hours. If the speed of the bu...
GIVEN:
Distance = 120 km
Time = 3 hours
Speed of bus is increased by 20% for next three hours.
FORMULA USED:
Speed = distance / time
CALCULATION:
The speed of the bus = Distance/Time = 120/3 = 40 km/hr
New speed of the bus = 120% of 40 = 6/5 × 40 = 48 km/hr
∴ Distance covered by the bus in the next 3 hours = 48 × 3 = 144 km
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A bus can covera distance of 120 km in 3 hours. If the speed of the bus is increased by 20% for the next 3 hours, find the distance covered by the bus in these three hours.a)146 kmb)144 kmc)142 kmd)140 kmCorrect answer is option 'B'. Can you explain this answer?
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