Study the given table and answer the question that follows.
The given table shows the number of voters at 4 different centres W, X, Y and Z.
| Centre | Total registered voters | Percentage who voted (%) |
| W | 10,260 | 67 |
| X | 15,320 | 70 |
| Y | 11,450 | 56 |
| Z | 13,394 | 75 |
What percentage of the total number of registered voters at centre X cast invalid votes, if the number of invalid votes cast at centre X was 25% of the number of votes cast?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 17.5%.
Total registered voters at centre X = 15,320
Votes cast = 70% of 15,320 = 10,724
Invalid votes = 25% of 10,724 = 2,681
Percentage of total registered voters who cast invalid votes = (2,681 ÷ 15,320) × 100 = 17.50%