In an election, candidate x got 70% of the overall valid votes. If 20% of the overall votes were declared invalid and the total numbers of votes is 640000, then find the number of valid votes polled in favour of the candidate.
Answer & explanation
Correct answer: option 1
70% = \(\frac{7}{10}\) & 20% = \(\frac{1}{5}\)
Number of valid votes = \(\frac{4}{5}\) × 64000 = 51200
Votes in favor of candidate = \(\frac{7}{10}\) × 51200 = 35840