1. With an average speed of 40 km/ hr, a train reaches its destination in time. If it goes with an average speed of 35 km/hr, it is late by 15 minutes. The total journey is





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  • By: anil on 05 May 2019 01.51 am
    Let the required distance be $$x$$ km Acc to ques : => $$frac{x}{35} - frac{x}{40} = frac{15}{60}$$
    => $$frac{8x - 7x}{280} = frac{1}{4}$$ => $$x = frac{280}{4} = 70$$ km
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