Question

Class 7887 has 2:7 math classes daily. How many math classes do they have after 21 days?

Please answer properly, You will get 1000 points for answering it, I do not want to see any links otherwise you will be banned!

Answer 1

assuming that 2:7 math classes daily means that they have 2 math classes out of 7 classes daily, then after 21 days they would have 42 math classes.