Question 420085
<pre>
Having an average of 91 on 6 tests is the same as making exactly
91 of all 6 tests.  So we will pretend that you made 91 on each
of the first 6 tests:

1. On the 1st test you made 91
2. On the 2nd test you made 91
3. On the 3rd test you made 91
4. On the 4th test you made 91
5. On the 5th test you made 91
6. On the 6th test you made 91
7. On the 7th test you made x.

           91 + 91 + 91 + 91 + 91 + 91 + x         
Average = --------------------------------- <u>></u> 92
                        7 

                                    546 + x
                                   --------- <u>></u> 92 
                                       7

                                     546 + x <u>></u> 644

                                           x <u>></u> 98

You need to make at lease 98

Edwin</pre>