A bus travels 160 km in 4 hours and a train travel 320 km in 5 hours at uniform speed , then find the ratio the distance travelled by them in one hour.
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A bus travels 160 km in 4 hours
the distance travelled by the bus in one hour is 160 divided by 4
160/4
=40
a train travel 320 km in 5 hours
a train travel in 1 hour is equal to 320/5
a train travel in 1 hour=80
the ratio of the distance travelled by them =40/80
the ratio of the distance travelled by them=1/2
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Electrical conductivity is the measure of a material's ability to allow the transport of an electric charge. Its SI is the siemens per meter, (A2s3m−3kg−1) (named after Werner von Siemens) or, more simply, Sm−1. It is the ratio of the current density to the electric field strength.
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