Suppose that you are taking a course that has 4 tests. The first three tests are for 100 points each and the fourth test is for 200 points. To get an B in the course, you must have an average of at least 80 percent on the 4 tests. Your scores on the first 3 tests were
79
,
77
, and
91
. What is the minimum score you need on the fourth test to get an B for the course?.

Question

11-09-2022
Mathematics

Answered

Suppose that you are taking a course that has 4 tests. The first three tests are for 100 points each and the fourth test is for 200 points. To get an B in the course, you must have an average of at least 80 percent on the 4 tests. Your scores on the first 3 tests were
79
,
77
, and
91
. What is the minimum score you need on the fourth test to get an B for the course?.

Answer :

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adioabiola adioabiola · Answer 1 · 2022-09-13T14:45:31-04:00

The minimum score needed on the fourth test to get a B grade for the course is; 153 points.

What is the minimum score required for a B ?

It follows from the task content that the first 3 tests attract 100 points each while the fourth test attracts 200 points. On this note, it follows that the total number of points attainable is; 500 points.

To get 80%, one must get; (80/100) × 500 = 400 points.

Hence, the minimum score needed on the fourth test to get a B is; 400 - 79 - 77 - 91 = 153 points.