Three project contractors A, B, and C can complete a technical report individually in 4, 6, and 12 days respectively. If they complete the report together and divide a ₱18,000 contract fee in proportion to their daily work rates, what is Contractor B's share?
Answer and explanation
Correct answer: C. ₱6,000
- Step 1: Daily rates: A = 1/4 = 3/12; B = 1/6 = 2/12; C = 1/12. Step 2. Ratio of contributions: 3 : 2 : 1. Total parts = 3 + 2 + 1 = 6. Step 3. B's fraction = 2/6 = 1/3. Step 4. B's earnings = 1/3 ₱18,000 = ₱6,000. Answer: ₱6,000. Why not the others: ₱9,000 is A's share (3/6 18,000); ₱3,000 is C's share (1/6 * 18,000).
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