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Practice mode Time and Distance

Walking at 5 km/h, Bilal reaches his office 12 minutes late. Walking at 6 km/h, he reaches 8 minutes early. How far is his office?

Correct answer A. 10 km

Explanation

Time difference = 12 + 8 = 20 minutes = 1/3 hour. So d/5 − d/6 = 1/3, giving d/30 = 1/3 and d = 10 km.

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