To calculate percentage, sum obtained marks and divide by total maximum marks, then multiply by 100. Students should follow CBSE guidelines as practicals and subject rules may vary.

CNET editor Gael Fashingbauer Cooper, a journalist and pop-culture junkie, is co-author of "Whatever Happened to Pudding Pops? The Lost Toys, Tastes and Trends of the '70s and '80s," as well as "The ...