Math, asked by itsmemyself, 1 year ago

a train travelling at a speed of 90 km/h crosses a 220 m long platform in 15 seconds find the length of the train

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Answered by chase

A shopkeeper mixes 35 kg of wheat which cost him rs.15 per kg with 25 kg of wheat which cost him rs.20 per kg.he sells the mixture at rs.22 per kg.his gain is

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