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The selling price of 18 books equal to the cost price of 21books .find the gain or loss percent​

Answer» <html><body><a href="https://interviewquestions.tuteehub.com/tag/21-293276" style="font-weight:bold;" target="_blank" title="Click to know more about 21">21</a> <a href="https://interviewquestions.tuteehub.com/tag/cp-427206" style="font-weight:bold;" target="_blank" title="Click to know more about CP">CP</a> = <a href="https://interviewquestions.tuteehub.com/tag/18-278913" style="font-weight:bold;" target="_blank" title="Click to know more about 18">18</a> spCP=18/21spCP/SP= 18/21CP/SP= 6/71/6*100100/616.66%</body></html>


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