For the case I The 4 questions are from first 5 questions and 6 questions are from remaining 8 questions so, 5C4×8C6‌‌=5×28 ‌‌=140 For the case II The 5 questions are from first 5 questions and the other 5 questions are from the remaining 8 question so, 5C5×8C5‌‌=1×56 ‌‌=56 Therefore, the total number of ways are, 140+56=196