If 15 men can complete a project in 20 days, how many days will 10 men take to complete the same work?
A25 days
B30 days
C35 days
D40 days
Explanation
Using inverse proportion M1 * D1 = M2 * D2: 15 * 20 = 10 * D2 => 300 = 10 * D2 => D2 = 30 days.
Exam Relevance
- Topic: Arithmetic & Percentages
- Subtopic: Time & Work
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