A tricky elementary school question
It is said that 99 out of 100 people answer incorrectly. The content: Xiao Zhang is a shoe store owner. He buys a pair of shoes for 20 yuan and sells them for 30 yuan. A customer gives him 50 yuan, but Xiao Zhang doesn't have change. Xiao Zhang goes to his neighbor and exchanges for five 10-yuan bills. He gives 20 yuan change to the customer, and later discovers it was counterfeit money. Xiao Zhang has to compensate the neighbor 50 yuan. How much did Xiao Zhang lose in total? I have been calculating for several minutes!
Replies (4)
The night was deep and all was silent. Suddenly, the roof tiles made a sound. I sprang up from the grass mat and whispered harshly, 'Who's there?!' A voice on the roof replied, 'Sir, please come out to talk.' I leapt into the courtyard, only to see a person standing on the ridge, dressed rather strangely, seemingly from a foreign land. He carried a long sword on his back, the hilt inlaid with a huge jewel that emitted a faint green glow under the moonlight. A chill ran through me as I thought of someone, and I cupped my hands in greeting: 'So it is Master of the Pearl Tower. You haven't been to the Central Plains for a long time. What brings you here today?' The Master of the Pearl Tower didn't answer. He raised his hand, and a ray of white light shot downward. I didn't dare slack off; I dodged sideways to avoid it, neutralized the momentum of the hidden weapon, and reached out to catch it. It was just a piece of paper. The Master of the Pearl Tower smiled: 'I came today specifically to deliver this post.' I looked again at the paper. Although it was good paper, it had yellowed and read: 'Respectfully invite you to attend the Heroes' Gathering on Monkey Year, Horse Month, Pig Day, Sheep Hour.' Thinking further, that Monkey Year, Horse Month was already three years ago. I couldn't help but sneer: 'Master, this post is rather too outdated!'
— All replies loaded —