A student has gotten the following grades on his test what is the minimum grade he must get on the last test in order to have an average of 82
To find the minimum grade the student must get on the last test in order to have an average of 82, we need to consider the total number of tests and the current average.
Let's assume the student has completed n tests so far (including the last test), and their average grade is currently 82.
The sum of all the grades the student has received so far is (n-1) * 82, as the number of grades is one less than the total number of tests.
If the student wants to have an average of 82 after completing all the tests, the sum of all the grades must be n * 82.
Therefore, the minimum grade the student must get on the last test can be calculated as:
Minimum Grade = (n * 82) - ((n-1) * 82)
Minimum Grade = 82 * (n - (n-1))
Minimum Grade = 82
So, the minimum grade the student must get on the last test is 82.