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ConceptInverse of a Matrix by Elementary Operations

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#### Question

A typist charges Rs. 145 for typing 10 English and 3 Hindi pages, while charges for typing 3 English and 10 Hindi pages are Rs. 180. Using matrices, find the charges of typing one English and one Hindi page separately. However typist charged only Rs. 2 per page from a poor student Shyam for 5 Hindi pages. How much less was charged from this poor boy? Which values are reflected in this problem?

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#### Reference Material

Solution for concept: Inverse of a Matrix by Elementary Operations. For the courses CBSE (Arts), CBSE (Commerce), CBSE (Science)