In view of Diwali, Rajnee, an electronics shop owner, offers a discount scheme to her customers that on buying 15 decorative bulbs, they get 5 decorative bulbs free. What is the effective percentage discount given by Rajnee to her customers?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 25%.
Buy 15 bulbs, get 5 bulbs free
Total bulbs received = 15 + 5 = 20
Effective discount = (5/20) × 100 = 25%