Given matrix A contains the costs per contact in paisa for different types of contacting the public.
Matrix B contains the number of contacts of each type made in two cities X and Y.
Now, the total amount spent by the political party in the two cities for contacting the public can be obtained by taking the product of the matrices B and A.
Amount spent in City X = 990000 paisa = Rs 9900
Amount spent in City Y = 2120000 paisa = Rs 21200
Total amount spent = Rs (9900 + 21200) = Rs 31110
Thus, the total amount spent by the party in both the cities is Rs 31110 with Rs 9990 spent in city X and Rs 21200 spent in city Y.
One must surely consider the party’s social activities instead of their promotional activities before casting his/her vote.
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