📊 Math
Q. A book is sold for ₹450 with a loss of 10%. What is the cost price?
  • (A) ₹470
  • (B) ₹490
  • (C) ₹500
  • (D) ₹510
✅ Correct Answer: (C) ₹500

Explanation: SP = 450 = 90% of CP; CP = (450 × 100) / 90 = ₹500.

Explanation by: Yami Thakur
SP = 450 = 90% of CP; CP = (450 × 100) / 90 = ₹500.

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