1. The ratio of speeds of two trains, one travelling at 45 km/hour and the other at 10 m/sec is
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By: anil on 05 May 2019 02.25 am
Speed of first train = 45 km/hr = $$45 imes(frac{5}{18})=12.5$$ m/s Speed of second train = $$10$$ m/s => Required ratio = $$12.5:10$$ = $$5:4$$ => Ans - (A)
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