Car A leaves town X at 8 a.m. towards town Y at 45 km/h. Car B leaves Y at 9 a.m. towards X at 55 km/h. If X and Y are 345 km apart, at what time do they meet?
Correct answer D. 12 noon
Explanation
By 9 a.m. car A has covered 45 km, leaving 300 km. Closing speed = 100 km/h, so they meet 3 hours after 9 a.m., at 12 noon.
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