In fact, this question is very simple. We can think that:
There are five left in the number of eight, and three are missing if you count it again.
10 10 There are seven left. If you count again, there will be three missing.
So now it is much easier to calculate the least common multiple of 8 and 10: 8. 10=40.
Then 40-3=37
A: There are at least 37 dates in this pair.
To sum up, as long as the landlord pays attention to the relationship between rest and number, there is no problem.
Hope to adopt