- A12.5
- B16.67
- C25
- D20
Step-by-Step Solution
Normal price = 180/12 = ₹15 per pen; sale price = 180/15 = ₹12 per pen. Discount = 3 on 15 = 20%. (Taking 3 on the new price of 12 gives the trap 25%.)
Answer: D) 20
A shop normally sells a pack of 12 pens for ₹180. During a sale it gives 15 pens for the same ₹180. The effective discount is what percent?
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