Which shop is best to buy: 1dozen pencils cost Rs.84 or 18 pencils cost Rs.135
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Answer:
Shop 1:
Cost of 1 dozen (12) pencils = Rs. 84
Cost of 1 pencil = Rs. 84/12
= Rs. 7
Shop 2:
Cost of 18 pencils = Rs. 135
Cost of 1 pencil = Rs. 135/18
= Rs. 16.875
Rs. 7 > Rs. 16.875
∴ Shop 1 is the best to buy pencils from.
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