Mathematics
NULL
Medium
Question
15 men build a 500 m wall in 30 days. How many days will 30 men take to build a 1.2 km wall?
A
48 days
B
24 days
C
40 days
D
36 days
✓ Official correct answer
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A
48 days
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B
24 days
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C
40 days
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D
36 days
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Explanation
1.2 km = 1200 m. Days = (15 × 30 × 1200)/(500 × 30) = 36 days.