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Keywords in puzzle..bus and taxi...1880..don't remember complete question. Kindly send answer if any one know

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raj travel a post of journey by taxi paying 15 per km and train paying 21 per km. in travel a total of 450 km and pay 8130.then the distance travelled by raj in train?
ans:
x be a taxi and 450-x be a train .
15x+21(450-x)=8130
15-21x+9450=8130
6x=1320
x=220
the to train is 230.
9 years agoHelpfull: Yes(6) No(0)

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