Anil bought some articles at 6 for ₹ 8 and sold them at 10 for ₹ 12. His percentage loss orgain is:

Cost price of 6 articles = ₹ 8

$$\Rightarrow$$  Cost price of 1 article = $$\frac{8}{6}$$  = ₹ $$\frac{4}{3}$$

Selling price of 10 articles = ₹ 12

$$\Rightarrow$$  Selling price of 1 article = $$\frac{12}{10}$$ = ₹ $$\frac{6}{5}$$

Loss of 1 article = $$\frac{4}{3}-\frac{6}{5}=\frac{20-18}{15}=$$  ₹ $$\frac{2}{15}$$

Loss% $$=\frac{\frac{2}{15}}{\frac{4}{3}}\times100=\frac{2}{15}\times\frac{3}{4}\times100=10\%$$

Hence, the correct answer is Option A