Case 1
A, D, G, J ⇒ This sequence is obtained by skipping 3 alphabets from the previous one. Skipping 3 alphabets from A, we get D.
Skipping 3 alphabets from J, we get M.
Case 2:
2AB, 3BC, 4CD ⇒ This sequence is obtained by following the letter number pattern. Here, the numerical part is increasing by 1 and the alphabets are consecutively increaing one after the other.
So, if we consider 2AB and 3BC we can see that 2 changes to 3, A changes to B and B changes to C
∴ From 4CD, we will follow the same pattern that is, we will change
4 ⟹ 5, C ⟹ D and D ⟹ E and together it will form 5DE.
Case 3:
2, 6, 10, 14 ⇒ This sequence is obtained by adding 4 to the previous numbe to find the next number.
⟹2+4=6,
⟹6+4=10,
⟹10+4=14
⟹14+4=18
The next number in the sequence will be 18.