Question
PSLE
A wafer costs $1.20 in Bakery F. For every 5 wafers a customer buys, he can buy the sixth one at half the price. What is the greatest number of wafers that a customer can buy with $21?
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PSLE
A wafer costs $1.20 in Bakery F. For every 5 wafers a customer buys, he can buy the sixth one at half the price. What is the greatest number of wafers that a customer can buy with $21?