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If a person had walked at the speed of 15 km/h instead of 10 km/h, he would have walked 25 km more. The actual distance travelled by him was:
In both the cases time taken 't' is same.
Therefore 10t=15t-25
15t-10t=25
5t=25
t=5 hours
Initial speed was 10 km/hr
and so distance traveled=10*5
=50 km
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