How many thirty one-day months are there in a year?
You could get a calendar and count them.
Or you could get them by subtracting the ones that do not have 31 from 12.
They are given in the popular rhyme
"Thirty days has September, April, June and November, all the rest have 31 except February"
4 months have exactly 30 days: April, June, September, and November. There is a rhyme giving the days in each month. (One version) Thirty days hath September April, June and November. All the rest have thirty-one. Excepting February alone, And that has twenty-eight days clear And twenty-nine in each leap year. (Another version) Thirty days hath September, April, June, and November; All the rest have thirty-one, February's twenty-eight alone; Save in leap year, that's the…
None, except for leap year. On leap year, one extra day is added to February to even out the amount of days in a year because there are 365 and 1/4th days in a year. So, leap year occurs only once every four years. ______________________________ Trick question: ALL of the months have 28 days. Most of them have more.