The pattern in both I and II is + 11. So, missing term = 43 + 11 = 54.
The given sequence is a combination of three series :
III. 3rd, 6th, 9th terms i.e. 6, 9, 12
Clearly, II consists of numbers obtained by adding 3. So, the missing term is 10.
The given sequence is a combination of three series :
III. 3rd, 6th, 9th, 12th terms i.e. 2, 5, 8, 11
Clearly, I consists of consecutive even numbers. So, the missing term is 10.
The given sequence is a combination of three series :
III. 3rd, 6th, 9th terms i.e. 8, 9,10
Clearly, I consists of consecutive numbers in decreasing order. So, the missing term is 5.
Numerator & Denominator
2 + 2 = 4 & 3 + 4 = 7 so 4/7
4 + 3 = 7 & 7 + 6 = 13 so 7/13
7 + 4 = 11 & 13 + 8 = 21 so 11/21
11 + 5 = 16 & 21 + 10 = 31 so 16/31
increment in numerator is increasing by 1 every time like 2,3,4,5
Increment in denominator is increasing by 2 every time like 4,6,8,10
So, the missing term is 7/13.