After selling 72 articles a man earns a profit equals to cost price of 9 articles. Find the profit %.
Answer & explanation
Correct answer: option 3
ATQ,
72S - 72C = 9C
72S = 81C
8S = 9C
\(\frac{s}{c}\) = \(\frac{9}{8}\)
Profit % = \(\frac{1}{8}\) × 100 = 12\(\frac{1}{2}\)%