33. Two persons are going at the speed of \( 2 \mathrm{~km} / \mathrm{hr} \) and \( 4 \mathrm{~km} / \mathrm{hr} \) respectively in the same direction in which a train is going. This train crosses them in 9 seconds and 10 seconds respectively. What is the length of the train? (a) 72 m (b) 54 m (c) 50 m (d) 45 m
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- Speed of first person: \(2 \, \text{km/hr} = \frac{2 \times 1000}{3600} \, \text{m/s} = \frac{5}{9} \, \text{m/s}\) - Speed of second person: \(4 \, \text{km/hr} = \frac{4 \times 1000}{3600} \, \text{m/s} = \frac{10}{9} \, \text{m/s}\) Show more…
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