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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

  1. $2520$
  2. $1176$
  3. $1680$
  4. $1440$
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