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A car can cover a certain distance in  If the speed is increased by 10 km/h, it would take 1/2 h less to cover the same distance. Find the slower speed of the car.
  • a)
    80 km/h.
  • b)
    40 km/h.
  • c)
    85 km/h.
  • d)
    60 km/h.
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A car can cover a certain distance inIf the speed is increased by 10 k...
Ratio of time :
= 9/2 : (9/2 – ½)
= 9/2 : 4
= 9 : 8
Speed of car increased by 10km/h
Then,
∴ Slower speed of car = 8 × 10 = 80km/h
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A car can cover a certain distance inIf the speed is increased by 10 km/h, it would take 1/2h less to cover the same distance. Find the slower speed of the car.a)80 km/h.b)40 km/h.c)85 km/h.d)60 km/h.Correct answer is option 'A'. Can you explain this answer?
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