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A bakery bill in Pune comes to ₹1450 — ₹1200 for cakes and ₹250 for bread. The 15% festival discount applies to the cakes only. What is the final bill?

Class 8Comparing QuantitiesComparing Quantities
  • A₹1232.50
  • B₹1435
  • C₹1020
  • D₹1270

Step-by-Step Solution

Discount the cakes alone: . Then add the undiscounted bread: 1020 + 250 = 1270. Trap: ₹1232.50 applies the 15% to the whole ₹1450, ₹1435 takes a flat ₹15 off, and ₹1020 forgets to add the bread back in.
Answer: D) ₹1270

Key idea: Discount

A discount is a reduction off the **marked price** (MP), not the cost price. The selling price (SP) is what the customer actually pays.

**SP = MP − Discount**
**Discount % = (Discount / MP) × 100**

Example: shirt MP ₹800, discount 25%. Discount amount = 25% of 800 = 200. SP = 800 − 200 = 600.

Note: discount % is calculated on MP. Profit/loss % (Class 7) is on CP. Don't mix them up.

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