Mathematics
NULL
Medium
Question
Taimoor left home at 6 am walking at 2 km/h to school, found it closed, and returned at 3 km/h, arriving home at 9 am. Find the home–school distance.
A
2.5 km
B
7.2 km
C
7 km
D
3.6 km
✓ Official correct answer
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A
2.5 km
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B
7.2 km
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C
7 km
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D
3.6 km
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Explanation
Total time = 3 hours. If distance is d: d/2 + d/3 = 3 ⇒ 5d/6 = 3 ⇒ d = 3.6 km.