A person travelled a distance of 200 km in 7 hours. He travelled partly on a car at the speed of 50 kmph and partly on cycle at 20 kmph. What is the distance travelled by him on cycle?
Let the distance travelled by car = x Distance travelled by cycle = 200 – x According to the question, x/50 + (200 - x)/20 = 7 2x + 1000 - 5 x = 700 300 = 3 x x = 100 km/hr. Distance travelled by cycle = 200 – 100 = 100 km/hr.
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