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A certain bookshop has 10 dozen chemistr...

A certain bookshop has 10 dozen chemistry books, 8 dozen physics books, 10 dozen economics books. Their selling prices are Rs80,Rs60 and Rs,40 each respectively. Find the total amount the bookshop will receive by selling all the books, using matrix algebra.

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Rs.20160
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A certain book shop has 10 dozen chemistry books, 8 dozen physics books, 10 dozen economics books. Their selling prices are Rs.80, Rs.60, Rs.40, each respectively. Using matrix algebra. Find the total value of the books in the shop.

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