A motorcar covers a certain dist in 8hr. First half at 40km/h and other half at 60km/hr. find the dist cov by him.
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since, first 4 hour distance is travelled in the speed of 40 km/h;
Distance=spped×time
=40km/h× 4h
=160km
and second 4 hour distance is travelling in the spped of 60 km/h
Distance=speed×time
=60×4
= 240km
total distance=160+240=400km
Distance=spped×time
=40km/h× 4h
=160km
and second 4 hour distance is travelling in the spped of 60 km/h
Distance=speed×time
=60×4
= 240km
total distance=160+240=400km
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