Current location - Training Enrollment Network - Mathematics courses - 20 10 Who knows the answer to the multiple-choice math questions in Fuzhou senior high school entrance examination?
20 10 Who knows the answer to the multiple-choice math questions in Fuzhou senior high school entrance examination?
I was (16,0) in the last question, but someone was (9,0), and I don't know how to calculate it.
The first sub-item of the big question is 20 and 28, and the second sub-item is 10 and less than or equal to y and less than or equal to 12.5.
* * * Three schemes
This is a five-twelfth chance of a refrigerator, right?