Today, there are two tour groups, A and B. If you buy tickets separately, the two groups will have to pay the tickets to 920 yuan.

It is known that the total number of the two teams exceeds 100 (because the total number of 636 can only be divided by 6, and the other two teams have decimal points or remainders that are not in line with the actual situation), it can be known that the total number of the two teams is 636÷6= 106.

If the two teams add up to only 106 people, then only one team can have less than 50 people and one team can have more than 50 people.

catalogue

A+B = 106

10x A +8x B =920

To solve this equation, A =36 people and B =70 people.

Verification:

36+70= 106

10x36+8x70=920

correct