Ankita buys $4 \mathrm{~kg}$ cashews, $14 \mathrm{~kg}$ peanuts and $6 \mathrm{~kg}$ almonds when the cost of $7 \mathrm{~kg}$ cashews is the same as that of $30 \mathrm{~kg}$ peanuts or $9 \mathrm{~kg}$ almonds. She mixes all the three nuts and marks a price for the mixture in order to make a profit of ₹ $1752$. She sells $4 \mathrm{~kg}$ of the mixture at this marked price and the remaining at a $20 \%$ discount on the marked price, thus making a total profit of ₹ $744$. Then the amount, in rupees, that she had spent in buying almonds is
- $2520$
- $1176$
- $1680$
- $1440$