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10 പേനയുടെ വാങ്ങിയ വില 9 പേനയുടെ വിറ്റ വിലക്ക് തുല്യമാണെങ്കിൽ ലാഭം എത്ര?

A$9 \frac {1}{11}$

B1212

C$11 \frac 19 $

D1010

Answer:

$11 \frac 19 $

Read Explanation:

10CP = 9SP CP/SP = 9/10 P = SP - CP = 10 - 9 = 1 ലാഭ ശതമാനം= P/CP × 100 = 1/9 × 100 = 11¹/9


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