A man travelled a distance of 99 km in 9 hours. He travelled partly on foot @9 km/hr and partly on bicycle @ 18 km/hr. W…
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A man travelled a distance of 99 km in 9 hours. He travelled partly on foot @9 km/hr and partly on bicycle @ 18 km/hr. What is distance (in kms) travelled on foot?
✓ Correct answer: c) 63
ExplanationGiven, Distance = 99 km Time = 9hr Speed on foot = 9 km/hr Speed on bicycle = 18 km/hr Let distance travelled on foot = a km Then distance travelled on bicycle = (99 – a) km According to the question, Time taken on foot + Time taken on Bicycle = 9 hr Hence, Distance travelled on foot = 63 km Hence, Option C is the correct answer.
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