Question
A train was moving at 60 km/hr for ‘x’ hours. It then
increased its speed by 10 km/hr and travelled for (x + 4) hours. If it covered 910 km in the second stretch, find how much distance it covered initially.Solution
ATQ,
70 × (x + 4) = 910
Or, x + 4 = 13
Or, x = 9
Therefore, required distance = 60 × 9 = 540 km
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