Hello, landlord, this topic can be solved like this if students have studied equations; Through the analysis of the topic, we can know which paper is required less, that is, how many pages are required less. It's better to know what the second page of the last paper is. In fact, this topic means a * * * quadruple number, and the sum of the first number and the fourth number is 167.

So if the first number is X and the fourth number is X+3, we can get the equation.

x+(x+3)= 167

The solution is x=82.

Therefore, we know that the previous paper of the missing one is 4 1 paper, so the 42nd paper is missing.

I am a poor scholar. If there is any mistake, please correct me. Thank you!