Answer :

Given matrix A containing 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 group 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 = 340000 paisa = Rs 3400

Amount spent in City Y = 720000 paisa = Rs 7200

Total amount spent = Rs (3400 + 7200) = Rs 10600

Thus, the total amount spent by the party in both the cities is Rs 10600 with Rs 3400 spent in city X and Rs 7200 spent in city Y.

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