Question
Sneha travels from village ‘K’ to village ‘L’.
If she cycles at 36 km/h, she reaches 20 minutes early. If she cycles at 24 km/h, she reaches 40 minutes late. What is the distance between village ‘K’ and village ‘L’?Solution
Let the distance between village ‘K’ and village ‘L’ be ‘d’ km Let the correct time to travel be ‘t’ hours According to the question, (d/24) = t + (40/60) = t + 0.667 And, (d/36) = t - (20/60) = t - 0.333 Or, (d/24) - (d/36) = 0.667 + 0.333 = 1 Or, (3d - 2d) ÷ 72 = 1 Or, d = 72 km Therefore, distance between village ‘K’ and village ‘L’ is 72 km.
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