<PRE><B>Question 633879</B>
 my grade is a 78 and the final exam is 15% of our grade and its only 25 question.
 and what if i scored a 60?
:
Then your 78 is 85% of your grade, 
:
Av = {{{(85(78) + 15(60))/100}}}
:
Av = {{{(6630+900)/100}}}
:
Av = {{{7530/100}}}
Av = 75.3 would be your average if you got a 60 on your exam
:
.6 * 25  = 15, you must get 15 right to score 60</PRE>