A firm is thinking of buying a printer for its office use for the next one year. The criterion for choosing is based on the least per-page printing cost. It can choose between an inkjet printer which costs Rs. 5000 and a laser printer which costs Rs. 8000. The per-page printing cost for an inkjet is Rs. 1.80 and that for a laser printer is Rs. 1.50. The firm should purchase the laser printer, if the minimum number of a pages to be printed in the year exceeds
Explanation:
Let minimum number of pages to be printed be x.
∴ 5000 + 1.8x = 8000 + 1.5x
Solving, we get x = 10000
Hence, option (b).
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