a retailer purchases pencils at 21 rupees per dozen and sells at 2 pencils for 4. 50 rupees then CP of each pencil is I need it very very urgent please send it fast
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cp of 12 pencils=21
cp of 1 pencil =21/12=7/4
1.75 rupees
cp of 1 pencil =21/12=7/4
1.75 rupees
SRINIDHI1111:
please
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