Question

In Samantha's English class, her current grade is calculated by finding the average of the scores she received on her terms papers. Samantha's last term paper brought her average up to a 91 from an 89, which was her average from the first three. Samantha claims that she scored a 97 on her fourth term paper. Is Samantha's claim true?

Answer 1

Yes Samantha’s claim is true

Her average for the first 3 was 89. So,
89 x 3 = 267

You then would add the supposed 97 to the already combined test scores.

This gives you 364. Which you then divide by 4, as there are 4 total tests.

This gives you an average of 91