Find the selling price when:

CP = ₹ 875 and loss = 12%

Find the selling price when:

$CP = र 645 and loss= 13\frac{1}{3}\%$

Find the cost price when, selling price $=₹1596$ and gain $=12\%$

Find the cost price when, selling price $=₹2431$ and loss $=6\frac{1}{2}\%$

Find the cost price when, Selling price $=₹657.60$ and loss $=4\%$

Find the cost price when, selling price $=₹34.40$ and Gain $=7\frac{1}{2} \%$

Manjit bought an iron safe for $₹12160$ and paid $₹340$ for its transportation. Then, he sold it for $₹12875$. Find his gain percent.

Robin purchased an old car for $₹73500$. He spent $₹10300$ on repairs and paid $₹2600$ for its insurance. Then he sold it to a mechanic for $₹84240$. What was his percentage gain or loss?

Hari bought $20 \mathrm{kg}$ of rice at $₹36$ per $\mathrm{kg}$ and $25 \mathrm{kg}$ of rice at $₹32$ per $\mathrm{kg}$. He mixed the two varieties and sold the mixture at $₹38$ per $\mathrm{kg}$. Find his gain per cent in the whole transaction.