A man covers a distance of 24 km in 7/2 hours partly on foot at the speed of 4.5 km/hr and partly on bicycle at the speed of 10 km/ hr. Find the distance covered on foot.
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time =distance /speed
7/2=(x/4.5)+((24-x) /10)
7/2=2x/9+(24-x) /10
7/2=(20x+216-9x)/90
7=(11x+216)/45
315=11x+216
99=11x
x=9
distance covered by foot 9kms
7/2=(x/4.5)+((24-x) /10)
7/2=2x/9+(24-x) /10
7/2=(20x+216-9x)/90
7=(11x+216)/45
315=11x+216
99=11x
x=9
distance covered by foot 9kms
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