To promote making of toilets for wome...

To promote making of toilets for women, an organisation tried to generate awareness attempt (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 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.

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