A student has the following marks on three Maths tests, 65%, 90%, and 85% What is the
highest possible average the student can receive if there is one more test and all four tests
count equally?
Answers
Answered by
1
Required Average
=
80
Let the required grade be
x
.
Average
=
Sum of
n
numbers
n
So
80
=
76
+
84
+
65
+
x
4
320
=
225
+
x
x
=
320
−
225
x
=
95
Therefore, the required grade is
95
.
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