CA Foundation P3 · Chapter 10 · Question 8 of 8
Two cars start from the same point. Car X travels 12 km East and then 5 km North. Car Y travels 4 km West and then 7 km South. What is the straight-line distance between the two cars?
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Reveal answer & explanation
Correct answer: D) 20 km
Explanation
Taking the start as origin, X is at (12, 5) and Y at (−4, −7). Horizontal gap = 12 − (−4) = 16 km, vertical gap = 5 − (−7) = 12 km. Distance = √(16² + 12²) = √400 = 20 km. 13 km is only Car X's distance from the start.
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