Yes, it is correct. The sequence followed is aba/aba/aba/aba.

Yes, it is correct. The pattern followed is taking two parts of the alphabetical series (13) on each side and then one step forward from the first letter of each part starting from A and M in each part, respectively.

Yes, it is correct. The pattern followed is that the first letter moves two steps forward and the last letter moves two steps backwards. The number in between is the square of numbers starting from 2.

Yes, it is correct. Here, the pattern followed is 2² + twice the number itself, which gives 2² + (2 x 2), 2² + (2 x 8), 2² + (2 x 20)... Hence, adding 4 to 40 gives 44.

Yes, it is correct. The pattern followed is prime number + 1, like 2 + 1, 3 + 1, 5 + 1, 7 + 1 and so on.

Yes, it is correct. The pattern followed is that the first, second and third letters of each term are respectively moved one, two and three steps forward to obtain the corresponding letters of the next term.

Yes, it is correct. The pattern followed is that the first moves one step ahead and third letter moves three steps forward. The numbers in between are prime numbers.

Yes, it is correct. The pattern is 1^st number x 1 + 5 = 2^nd number 2nd number x 2 = 3rd number. 3rd number + 7 = 4th number. 4th number x 3 = 5th number 5th number + 9 = missin g number = 87 + 9 = 96

Yes, it is correct. The pattern followed is the reverse of the first three letters, skipping one letter, again reverse of next three letters.

Yes, it is correct. The pattern followed is +5, +9, +13, +17, ... In each step, 4 is added and accordingly, the step increases. The missing number here is calculated by adding 4 + 9 to the previous number.

20 + 13 = 33

Yes, it is correct. The first letter moves two steps forward and the second letter moves three steps backwards. BY, DV, FS, HP, JM.

Yes, it is the correct option. Here, the pattern followed is -3, +10, interchanging the digits place, -3, +10, interchanging the digits place, ... Hence, the correct series formed will be 40, 37, 47, 74, 71, 81, 18...

Yes, it is correct. The pattern followed is bababb/bababb.

Yes, it is correct. The pattern followed is that the first letter moves by 1, 2, 3, 4... steps forward, second letter moves two steps backwards and third letter is one step ahead of the first letter. AZB, BXC, DVD, GTE, KRF, PPG.

Yes, it is correct. The pattern followed is 2² + 1, 3² + 2, 4² + 3, 5² + 4, ...

Hence, the answer is 19.