Solution: First, find the least common multiple of 5 and 6 (that is, 30).
30+2=32 (Name)
There are 32 students in Class Three, Grade Five.
Question 3: Xiao Wei has a haircut every 30 days, and Xiaoming has a haircut every 40 days. On June 65438+1 October1day, 2009, both of them went to a shop for a haircut. How many times have they had their hair cut together this year?
Solution: Xiao Wei has a haircut every 30 days and Xiaoming has a haircut every 40 days, so they meet every 120 days. 365 days a year.
365÷ 120≈3
They have their hair cut three times a year.