Don't bother, I'm too lazy to think about it. It's much better for you to go to Baidu to search for questions than this.

If Baidu search is a difficult problem, almost everyone has asked it, then there is no need to ask it directly.

I searched this. Don't know right

copy

The number of cubes to be produced in China in one day:1.3 *109 *1.5100 =1.95 *107.

Volume: 0.53 *1.95 *107 = 2.4375 *106 cubic meter.

Suppose the length, width and height of the classroom are 20m, 10m and 3m respectively, and the classroom volume is 20* 10*3=600 cubic meters.

Required classrooms: 2.4375 * 10 6/600 = 4062.5.

So the classroom can't; There are about 40 classrooms in a school, which is not allowed; There are about 300 schools in a city, 300 * 40 =12000 > 4062.5, can't

If not, you can go to the problem valley. There are many questions, almost all of them, and they are all recorded for about a few minutes. If you don't want to see the steps, just move to the end and you will see the answer.

Remember, this is a problem valley.