Marks, grades and study

Marks, grades and attendance: the arithmetic a marksheet, a grade card or a college attendance register asks for, with the rule that decides the answer left visible rather than buried in a formula.

A percentage is obtained marks divided by maximum marks. Almost every disagreement about a result comes from the two numbers either side of that division rather than from the division: which subjects count toward the aggregate, whether practical marks are in or out, whether an optional language is included, and whether the board rounds to two decimals or to a whole number. The tool computes what you enter and shows the total it used.

Grade conversions are the same problem in a different shape. A CGPA turned into a percentage needs the multiplier your own board publishes, and boards use different ones — the conversion is a convention, not a law of arithmetic, and a multiplier taken from another university will produce a figure that looks precise and is simply someone else’s. Enter the multiplier printed on your grade card.

The pages added since then follow the same rule through the rest of a term. A percentage and a CGPA convert in both directions off one multiplier, because the same convention has to survive the round trip. The study-hours page multiplies chapters by the hours a chapter takes and spreads the total over the days you will actually sit down, an average rather than a promise. The countdown subtracts the weekly off and the exam day itself before it divides what is left into weeks, and the typing test measures the text you produced rather than the text you were given. The citation page assembles a plain-text reference in the style you pick and leaves the details it cannot verify — an edition, a page range, a DOI — to be read off the source.