In a parliament election, a political party hired a public relations firm to promote its candidates in three ways telephone, house calls and letters. The cost per contact (in paisa) is given in matrix `A` as `A=[140 200 150]T e l e p hon e Hou s e\ c a l l s L e tt e r s` The number of contacts of each type made in two cities `X` and `Y` is given in the matrix `B` as Telephone House call Letters `B=[1000\ \ \ \ \ \ \ \ \ \ \ \ \ 500\ \ \ \ \ \ \ \ \ \ \ \ \ \ 5000 3000\ \ \ \ \ \ \ \ \ \ 1000\ \ \ \ \ \ \ \ \ \ \ \ 10000]C i t y\ X C i t y\ Y` Find the total amount spent by the party in the two cities. What should one consider before casting his/her vote partys promotional activity or their social activities?

Explanation

`A=[[140], [200], [150]]`

`B=[[1000, 500, 5000], [3000, 1000, 10000]]`

`BA=[[990000 paise], [2120000 paise]]`

`[[Rs. 9900], [Rs. 21200]]`