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At a game billiards, A can give B 10 points in 60 and he can give C 15 in 60. How many can B can give C in a game of 90?
- A3
- B6
- C9
- D12
Correct answer: C
Discussion 1
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CCommunity
9
If A score 60 points, B score 50 points and C score 45 points.
When B scores 50 points, C scores 45 points.
When B scores 90 points, C scores (45/50 *90) points = 81 points.
∴ B can give C, 9 points in a game of 90.
If A score 60 points, B score 50 points and C score 45 points.
When B scores 50 points, C scores 45 points.
When B scores 90 points, C scores (45/50 *90) points = 81 points.
∴ B can give C, 9 points in a game of 90.