i don't know about how the score gets calculated or on what basis.maybe the website where i took the test on should provide some answers.but i remember just the score quite clearly as we had to take a print-out of the result and show it in class the next day.

just as an additional info,the Mensa website says that The term "IQ score" is widely used but poorly defined. There are a large number of tests with different scales. The result on one test of 132 can be the same as a score 148 on another test.

"You are never alone or helpless. The force that guides the stars guides you too.”
~ Amrta Shrii Shrii Anandamurti(Indian born Guru, 1921-1990)