The following table shows the total number of votes polled and the percentage of invalid votes in a polling center in a village during the last four Assembly elections. Year  Total votes polled   Percentage of Invalid votes   2005  6500 5% 2010 8000 7% 2015 9400 15% 2020 10400 12% What is the sum of the number of valid votes polled in 2010 and 2015 at this center?

16425 15430 15600 16140

15430

Number of valid votes polled in 2010 & 2015 = \(\frac{93}{100}\) × 8000 + \(\frac{85}{100}\) × 9400 = 7440 + 7990 = 15430