SSC CHSL 8 Jan 2017 Shift 3 Paper

The Vendor buys chikoos at 15 for Rs. 8
⇒ Cost price of 1 chikoo = Rs. $\frac{8}{15}$
The Vendor sells chikoos at 10 for Rs. 6
⇒ Selling price of 1 chikoo = Rs. $\frac{6}{10}$
⇒ Total profit = $\frac{6}{10}-\frac{8}{15}=\frac{18-16}{30}=\frac{1}{15}$
∴ profit % = $\frac{\frac{1}{15}}{\frac{8}{15}}\times 100$
$=\frac{100}{8}=12.5\%$