exam practice software with multiple choice answers

StingRay said:

Hello,

i have one quiz software that give multiple choice questions. each question have 5 choice A,B,C,D,E & each question have 2 value correct. and i am access program database and found answer. but my math is not good. i need to know how to calculate value of each answer.

example:


The most productive diamond mine in the world today is located in
A)South Africa
B) Siberia
C)Brazil
D) Australia
E) Zaire

if answer is A and B is correct software database have answer value is 3.
i am found some correct answers with database value.
correct answers value:

Code:

#    correct 1    correct 2    Answer
1    A        B        3
2    A        C        5
4    A        D        9
6    A        E        17
3    B        C        6
5    B        D        10
7    B        E        18
8    C        E        20
9    D        E        24

now i need to know how to calculate answer value ?

Like :

Code:

#    Choice 1    Choice 2    Answer
1    C        D        ??

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