Difficulty: Easy
Correct Answer: 20 points
Explanation:
Introduction / Context:Convert handicaps to ratios and infer B:C. Then compute the start B can give C on the same 200-point base for comparison.
Given Data / Assumptions:
Concept / Approach:B:C = (A:C)/(A:B) = (25/18)/(5/4) = (25/18)*(4/5) = 10/9. When B scores 200, C would score 180; the difference is B’s start to C.
Step-by-Step Solution:
C at B's 200 = 200*(9/10) = 180B can give C = 200 − 180 = 20 pointsVerification / Alternative check:Ratios reduce properly and remain consistent across scaling.
Why Other Options Are Wrong:They are inconsistent with B:C = 10:9 on the 200-point base.
Common Pitfalls:Subtracting handicap numbers directly without ratio conversion.
Final Answer:20 points
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