A school has four sections A, B, C, and D of Class IX students.

The results of half-yearly and annual examinations are shown in the table given below.

Result	No. of Students
	Section A	Section B	Section C	Section D
Students failed in both Exams	28	23	17	27
Students failed in half-yearly but passed in Annual Exams	14	12	8	13
Students passed in half- yearly but failed in Annual Exams	6	17	9	15
Students passed in both Exams	64	55	46	76

How many students are there in Class IX in the school?