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10 പേന വിൽക്കുമ്പോൾ 2 പേനയുടെ വില ലാഭമായി കിട്ടുന്നു എങ്കിൽ ലാഭശതമാനം എത്ര?

A20%

B25%

C24%

D16%

Answer:

B. 25%


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