If 1 shirt is offered free on purchase of 3 shirts priced Rs 500 each, then what is the effective discount on each shirt?
Cost price of 1 shirt = Rs. 500
Cost price of 4 shirts = $$4 \times 500 = Rs. 2,000$$
If 1 shirt is offered free on purchase of 3 shirts, => Cost of 3 shirts = $$3 \times 500 = Rs. 1,500$$
=> Effective discount = $$\frac{2000 - 1500}{2000} \times 100$$
= $$\frac{500}{20} = 25\%$$
=> Ans - (D)
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