Creative story

One person bought milk from the vendor.

He asked the vendor for the price.

The vendor said: NT$3 per bottle ,NT$10 three bottles.

The man bought one bottle for NT$3 and repeated three times.

The man later proudly said to the vendor:”Haha, I bought 3 bottles only for NT$9.”

The vendor said: “Haha, since I did this, I can sell 3 bottles at a time.”

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