Ask difficult questions, high score reward!! The answer, the high bounty!!

Hello! 1.The reason they laughed was that the bespectacled classmate didn't count himself. So we get the equation:

Those who do not wear glasses: 1 (1 2-1 3) = 6 (people) Those who wear glasses: 6 * 1 2 = 3 (people).

Total enrollment: 6+3+9 (people).

2.On the ninth day, there were.

10 (1 1 2) 20 pcs.

On the eighth day there were 20 (1, 1, 3) 30.

On the seventh day there were 30 (1, 1, 4) 40.

On the sixth day there were 40 (1 1 5) 50.

On the fifth day there were 50 (1 1 6) 60.

On the fourth day there were 60 (1 1 7) 70.

On the third day there were 70 (1 1 7) 80.

The next day there were 80 (1 1 9) 90.

There were 90 (1 1 10) 100 on the tree.

3.It takes 5 days to dig through.

Set the first day, the second and the third day. T day dug up,.

Small first, second, three. T day dug up,.

2^t=32=2^5

t=5 days, i.e. 5 days to dig through.

Rat: Mouse: 40+20+10+5+

I hope you are satisfied with my answer! Thank you!

1. They laugh because the people who read the books don't count themselves.

Set the X who wears glasses and the Y who does not wear

x-1=2y x=3（y-1）

x+y=7

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How to avoid the deletion of Q&A?

How to avoid the deletion of Q&A?

Children, you have time to type these words on the computer, why don't you ask your parents, it's so cute, these don't seem to be too difficult questions.

Children! You'd better do your winter vacation homework yourself!!

And your bounty "height" is really not high enough!!

That's so patient.

I can't stand it, I'm dazzled.