# How to find its 100%?

Discussion in 'Math' started by Lightfire, Dec 15, 2011.

1. ### Lightfire Thread Starter Well-Known Member

Oct 5, 2010
690
21
Hello,

For example I received an examination scored 77 and its equivalent in percentage is 90%. How to find it's 100% value?

For example it is something like 77 / 84 (just example)

Lightfire

2. ### mrmount Active Member

Dec 5, 2007
59
7
(77*100/90) = 85.556. I believe you are asking 90% of what value will give you 77.

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3. ### Georacer Moderator

Nov 25, 2009
5,151
1,266
Simple method of three:
X=unknown percentage.
T=the best score for the specific test

X=C/T*100 (in %)

If you know your percentage in the test, and you know the percentage of the test in the total grade, then your contribution to your total grade is
X=final contribution
T=test contribution
S=your score in the test in percentage

X=T*S

Does that help?

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4. ### Lightfire Thread Starter Well-Known Member

Oct 5, 2010
690
21
I don't get. What I am looking is the total score.. pls hep.

5. ### Georacer Moderator

Nov 25, 2009
5,151
1,266
Can you try to explain what you have and what you want a bit better? I don't understand what you want to achieve.

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6. ### Lightfire Thread Starter Well-Known Member

Oct 5, 2010
690
21
Um,

For example, the percentage is 75% and its value is 3.. So how to know the denominator of the 3? In this case, its 4...$\frac{3}{4}=75%$

MMMM, the denominator now is missing,,,<br><br>$\frac{77}{?}=90%$

plllllllllllllllllllllllls help....

7. ### lopoditi New Member

Jul 24, 2011
6
1
77/0.9

simple

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8. ### thatoneguy AAC Fanatic!

Feb 19, 2009
6,357
718
$0.9=\frac{77}{max score}$

Divide 77 by .9
and about 85.5 (?!) points were available, if 77 points correct gave you 90%

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9. ### BillO Distinguished Member

Nov 24, 2008
985
136
$

\frac{77}{?}=90%\ \ \rightarrow\ \ \frac{77}{90%}=?
\
\
Does\ this\ help?

$

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