18. If a person walks at 14 km/hr instead of 10 km/hr, he would have walked 20 km more. The actual distance travelled by him is:
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Step-by-step explanation:
14 -10 = 4 km/ hr
so, distance travell 20/4=5 hr
so, therefore actual distance will be
10*5=50km+20km=70 ans....
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