Number of votes cast in villages A and B together is ________ % of the number of valid votes cast in village D.

Number of votes cast in D :

\(25000\times\frac{80}{100}=20000.\)

Number of valid votes in D :

\(20000\times\frac{60}{100}=12000. \)

Number of votes cast in A :

\(18000\times\frac{75}{100}=13500.\)

Number of votes cast in B :

\(22500\times\frac{80}{100}=18000.\)

Reqd. percentage : \(\frac{31500}{12000}\times100=262.5\)%