T2W2 TS Q04 – Selective High School

John: My current average mark is 63% for my first two tests, while the class average was 65%. If I get a 67% on my third and final test, my average will be the same as the class average.

Which of the following sentences best show the mistake John has made?

The class average will change after everyone completes the third test. His third mark of 67% would not be high enough to bring his average to 65%. The class average depends on the number of students sitting the test. Johns new average will depend on how many questions there are in the third test.

Are you sure you want to leave?

Which of the following sentences best show the mistake John has made?