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.

What is the sum of the number of valid votes polled in 2010 and 2015 at this center?

15430

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

= 7440 + 7990

= 15430