In a legislative assembly election, a political group hired a public relations firm to promote its candidates in three ways: telephone, house calls and letters. The cost per contact (in paise) is given matrix A as
$A=\begin{array}{c}\mathrm{Cost}\mathrm{per}\mathrm{contact}\\ \begin{array}{c}\left[\begin{array}{c}40\\ 100\\ 50\end{array}\right]\end{array}\end{array}\begin{array}{c}\\ \begin{array}{c}\mathrm{Telephone}\\ \mathrm{House}\mathrm{call}\\ \mathrm{Letter}\end{array}\end{array}$
The number of contacts of each type made in two cities X and Y is given in matrix B as
$\begin{array}{c}\begin{array}{ccc}\mathrm{Telephone}& \mathrm{House}\mathrm{call}& \mathrm{Letter}\end{array}\\ B=\left[\begin{array}{ccc}1000& 500& 5000\\ 3000& 1000& 10000\end{array}\right]\end{array}\begin{array}{c}\\ \to X\\ \to Y\end{array}$
Find the total amount spent by the group in the two cities X and Y.

Q. In a legislative assembly election, a political group hired a public relations firm to promote its candidate in three ways: telephone, house calls, and letters. The cost per contact (in paise) is given in matrix $A$ as:
Cost per contact
$A=\left[\begin{array}{c}40\\ 100\\ 50\end{array}\right]\begin{array}{c}\text{Telephone}\\ \text{House call}\\ \text{Letter}\end{array}$
The number of contacts of each type made in two cities $X$ and $Y$ is given by-
$\begin{array}{cccc}& \text{Telephone}& \text{House call}& \text{Letter}\end{array}$
$B=\left[\begin{array}{ccc}1000& 500& 5000\\ 3000& 1000& 10,000\end{array}\right]\begin{array}{c}\to X\\ \to Y\end{array}$
Final the total amount spent by the group in the two cities $X$ and $Y.$

Q. 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

$A=\left[\begin{array}{c}140\\ 200\\ 150\end{array}\right]\begin{array}{c}\mathrm{Telephone}\\ \mathrm{House}\mathrm{calls}\\ \mathrm{Letters}\end{array}$

The number of contacts of each type made in two cities X and Y is given in the matrix B as

$$\begin{gathered} \begin{array}{ccc}\mathrm{Telephone}& \mathrm{House}\mathrm{calls}& \mathrm{Letters}\end{array} \\ B=\left[\begin{array}{ccc}1000& 500& 5000\\ 3000& 1000& 10000\end{array}\right]\begin{array}{c}\mathrm{City}X\\ \mathrm{City}Y\end{array} \end{gathered}$$

Find the total amount spent by the party in the two cities.

What should one consider before casting his/her vote − party's promotional activity of their social activities?

Q. To promote making of toilets for women, an organisation tried to generate awarness through (i) house calls, (ii) letters, and (iii) announcements. The cost for each mode per attempt is given below:
(i) ₹50 (ii) ₹20 (iii) ₹40

The number of attempts made in three villages X, Y and Z are given below:
(i) (ii) (iii)
X 400 300 100
Y 300 250 75
Z 500 400 150

Find the total cost incurred by the organisation for three villages separately, using matrices.

Q. To promote the making of toilets for women, an organization tried to generate awarencess through:

Q. To promote making of toilets for women, an organisation tried to generate awarness through (i) house calls (ii) letters, and (iii) announcements. The cost for each mode per attempt is given below:
(i) Rs. 50 (ii) Rs. 20 (iii) Rs. 40
The number of attempts made in three village X, Y and Z are given below:
(i) (ii) (iii)
X 400 300 100
Y 300 250 75
Z 500 400 150
Find the total cost incurred by the organisation for three villages separately, using matrics.