Hangzhou companies can reduce taxes by shaking the number between 20,000 and 40,000 yuan.

1. The accumulated tax paid by Hangzhou Company is between 20,000 yuan and 30,000 yuan, and the amount of relief by lottery is 20,000 yuan.

2. The accumulated tax paid by Hangzhou Company is between 30,000 yuan and 40,000 yuan, and the amount of lottery relief is 30,000 yuan.

3. Hangzhou Company has paid more than 40,000 yuan in taxes and 40,000 yuan in lottery relief.