Martin123 Martin123

13-07-2015
Mathematics

Answered

The school wishes to purchase 2500 pens and have discovered that 3 stores sell the same model pen.Which store has the best buy ? Store A sells 15 pens for $0.50, Store B sells 50 pens for $ 1.70 and Store C sells 30 pens for $0.90

Verified Answer :

13-07-2015

\(Store\ A: \frac{0.5}{15}=0.0333\ cents\ per\ pen \\ \\ Store\ B: \frac{1.7}{50}=0.034\ cents\ per\ pen \\ \\ Store\ C: \frac{0.9}{30} =0.03\ cents\ per\ pen \\ \\ Store\ C\ is\ the\ cheapest.\)

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