Classical Logic Problem Solving Logic Problem Detailed Answer

First, Komatsu sold cigarettes to Xiao Yu and received 100 yuan of counterfeit money, but after exchanging the real money, he found 79 yuan, at this time Komatsu's property had a pack of cigarettes and 79 yuan, and the property in was 21 yuan, because at this time the real money in his hand was still real.

Second, Komatsu exchanged 100 yuan of genuine money for counterfeit money, the property out was 100 yuan, and the property in was 0, so the total property out was 18 + 79 + 100, and the total property was 21 yuan, and the total formula was: 18 + 79 + 100-21 = 176

Komatsu lost a total of 176 yuan.

Komatsu lost a total of 79 yuan in cash and 18 yuan worth of cigarettes, a total of 97 yuan.

Komatsu lost 97 yuan.

If the 100 yuan is true, but they still made all these exchanges, Komatsu finally exchanged 100 for Kochao's 100, and Komatsu transferred 3 yuan at this time. In the end, Komatsu tore 100 (fake), so Komatsu lost 100, so Komatsu accompanied a total of 97 yuan.

Komatsu took a total of 100 + 18 = 118 yuan, bought 18 cigarettes, and gave Xiaoyu 79, it took a total of 97, and since the smoke had already given Xiaoyu, Komatsu lost 97

18 (is Komatsu's purchase money) +100 (change exchanged from Xiaochao) - 79 (the money I gave Xiaoyu) - 100 (the money I gave Xiaochao) = -97 That is, Komatsu lost 97 yuan.

A total of 97 dollars was lost:

You can just look at the amount of his money:

Into a pack of cigarettes: -18

Sell: +21

To Xiaochao: -100

So -18+21-100=97

18 cigarette money + 79 to whisper +100 tear =。。。

The principal guessed: "Zhang Hua real estate or Li Mo IT industry" Zhang Hua is not real estate and Li Mo is not an IT industry

Based on the information above, which of the following is likely to be true. Apart from?

A Zhang Hua is not engaged in real estate and Li Mo is not engaged in the IT industry.

b Zhang Hua is engaged in real estate, or Li Mo is not engaged in the IT industry.

c If Li Mo is not engaged in the IT industry, then Zhang Hua is engaged in real estate. d If Zhang Hua is engaged in real estate, then Li Mo is engaged in the IT industry.

If Zhang Hua is engaged in real estate, then Li Mo is not engaged in the IT industry.

Note that "Except" is selected. The principal's original guess was "Zhang real estate or Li it.""It is equivalent to "Li Fei IT Zhang Real Estate".