Discount $$=Discount\% \times Marked Price$$
8% discount on marked price ₹400 = $$400\times \frac{8}{100} =$$₹ 32
12% discount on marked price ₹240 = $$240\times \frac{12}{100} =$$₹ 28.8
7% discount on marked price ₹500 =$$500\times \frac{7}{100} =$$₹ 35
10% discount on marked price ₹320 =$$320\times \frac{10}{100} =$$₹ 32
Option C is correct.
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