Question 59
The ratio between the speeds of two trains is 2 : 5. If the first train covers 350 km in 5 hours, then the speed (in km/h) of the second train is:
Solution
Let the speed of two trains be 2p and 5p respectively
Speed of first train = $$\frac{\ 350}{5}$$ = 70 km/hr
$$=$$> 2p = 70
$$=$$> p = 35
$$\therefore\ $$The speed of second train = 5p = 5(35) = 175 km/hr
Hence, the correct answer is Option B
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