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

Result	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

In the context of comparing the difficulty level of the two examinations based on the number of students passing, which of the following statements is true?

Compare total passes in each exam:

Pass half-yearly = Passed half-yearly (passed both + passed half-yearly but failed annual)

Pass annual = Passed annual (passed both + failed half-yearly but passed annual)

Calculation:

Section A:

Pass half-yearly = 64 + 6 = 70

Pass annual = 64 + 14 = 78

Section B:

Pass half-yearly = 55 + 17 = 72

Pass annual = 55 + 12 = 67

Section C:

Pass half-yearly = 46 + 9 = 55

Pass annual = 46 + 8 = 54

Section D:

Pass half-yearly = 76 + 15 = 91

Pass annual = 76 + 13 = 89

Total passes in half-yearly = 70 + 72 + 55 + 91 = 288

Total passes in annual = 78 + 67 + 54 + 89 = 288

Both exams have the same total number of students passing (288).

∴ Both the exams had almost the same difficulty level.