In an election, 50,000 votes were cast and 10% of them were invalid. The winning candidate got 60% of the valid votes. How many votes did the losing candidate (the only other candidate) get?
A. 18,000
B. 20,000
C. 22,500
D. 27,000
A. 18,000
B. 20,000
C. 22,500
D. 27,000
Best answer
Answer: A. 18,000
Answer: (A) 18,000
Valid votes = 90% of 50,000 = 45,000.
Loser's share = 100% − 60% = 40% of valid votes = 0.4 × 45,000 = 18,000.
Common trap: 40% of 50,000 = 20,000 uses total votes instead of valid votes.
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