Question

complete the series a2e ,b7d, d17b ,g37y, (....)

Answer 1

Consider all 3 characters in every entry one-by-one

So, a2e, b7d, d17b....

For 1st character, the series is a, b, d, g,....

Here the pattern is the number of alphabet increasing like: 1, 2, 4, 7, 11, 16....
Every successive series entry is increasing by 1, then 2, then 3, and so on.

Similarly for 3rd character, the series is e, d, b, y....

Here the pattern is just same as in 1st character, but here it is decreasing like: 5, 4, 2, -1, -5....
Every successive series entry is decreasing by 1, then 2, then 3, and so on.

For 2nd character, the series is : 2, 7, 17, 37,....

Here the pattern is 2, 2+5, 2+5+10, 2+5+10+20,...and so on
Every successive series entry is increasing by 5, then 10, then 20, and so on.

So, our next entry in the series will be: k 77 u