how to find xi? Share with your friends Share 4 Lalit Mehra answered this Hi! Here is the answer to your question. xi is the class mark of the given class. Cheers! 30 View Full Answer Bhavana Hegde answered this its very simple you can remember it easily.... 3 marmikmarmik... answered this nice sir ......... 2 nayakshubham answered this u can find xi by :- lower limit +uper limit divide by 2 10