Question
PSLE
A cookie costs $0.80 in Bakery E. For every 5 cookies a customer buys, he can buy the sixth one at half the price. What is the greatest number of cookies that a customer can buy with $20?
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PSLE
A cookie costs $0.80 in Bakery E. For every 5 cookies a customer buys, he can buy the sixth one at half the price. What is the greatest number of cookies that a customer can buy with $20?