During a sale at a music store, if a customer buys one tape at full price, the customer is given a 50 percent discount on a second tape of equal or lesser value. If Linda buys two tapes that have full prices of $15 and $10, by what percent is the total cost of the two tapes reduced during this sale?
A. 5%
B. 20%
C. 25%
D. 30%
E. 50%
সঠিক উত্তরঃ
B.
20%
Explanation:
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