Serious help

[Juanseefour]

Is is possible to find the formulas used to get a result? Pretty much I hardcoded an answer in a test and as a result of not leaving in the formula I dropped serious marks. If anyone can help it would be seriously appreciated. Thanks in advance.

 

[FDibbins]

...and that if how you got the answer is as important as the answer itself, separate the calculation of the results from their final presentation.

Also a very valid point