If a person walks at 14 km/hr instead of 12 km/hr, he would have walked 1 km more in the same time. What is the actual distance (in kms) travelled by him at 12 km/hr in the same time?
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Solution
let required time is =t hours
now...
distance covered in time t with the velocity 14km/h is=14t km
and with 12km/h is =12t
now...
14t-12t=1
=>t=0.5 hours
distance covered by him at 12km/h
=12(0.5)km=6km
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