a train goes from Gandhinagar to Patna Train speed of 128 kilometre per hour and returns to the Gandhinagar at a different speed if the average speed for the time in journey is 112 kilometre per hour then find the speed of the train for the return journey
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Answer:
Let average speed be a
Speed from Gandhinagar to Patna be b
Speed from Patna to Gandhinagar be c
a=(b+c)/2
112=(128+c)/2
112×2=128+c
224=128+c
c=96
Speed from Patna to Gandhinagar=96
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