Tricks to Solve Alpha-Numerical Series

In this article we learn how to solve Alpha-numerical series easily by developing tricks

CASE 1

Question:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

1. Which letter will be 4th to the right of 11th letter from your left hand of English Alphabets?

TRICK: 

If both are in opposite direction (add)
=To from
=4R + 11L
=15L =O (Multiples of 5) (Use this trick to find 15L)

E	J	O	T	Y
5	10	15	20	25

2. Which letter will be 6th to the left of 20th letter from your left of English Alphabets?

TRICK: 

If both are in same direction (subtract)
=To From
=6L - 20L
=14L=N (Multiples of 5) (Use this trick to find 14L)

E	J	O	T	Y
5	10	15	20	2

3. Which letter will be 5th to the left of 12th letter from your right of English Alphabets?

=TO From
=5L + 12R
=17R= (Find from reverse alphabetical order) (How we find if it is from right side)
=J (Answer)

Step 1:

find 17L from Multiples of 5

E	J	O	T	Y
5	10	15	20	25

17L is Q, Find 17R from step 2.

Step 2:

find 17R from
1. AZad
2. BoY
3. CraX
4. DeW
5. EVen
6. FUll
7. GT road
8. High School
9. Indian Railways
10. Jungle Queen
11. KanPur
12. LOve
13. MaN

4. Which letter will be 3rd to the right of 15th from the right?

=TO from
=3R - 15R
=12R=O (Since from Reverse alphabetical order)

CASE 2
Study the following digit-letter-symbol sequence carefully and answer the questions given below:

2 R * C f 8 E $ G 2 # 4 9 L c % B < K 1 & A W ? P e + Q @ 7 F 6

Question 1:
If the first half of the series is written in reverse order, then which Element will be twenty-first from the right end?

TRICK: 

No need of writing the series in reverse order
Step 1: Count the total number of alpha-numericals =32
Step 2: As we are considering half of the series, divide by two =32/2=16
Required 21R = 16R+5R
Instead of taking 5R take 5L (since first half is reversed)
16R+5L=f (Answer)

Question 2:

Which element will be twenty-first from the right end, if second half of the series is reversed?

TRICK: 

No need of writing the series in reverse order
Step 1: Count the total number of alpha-numericals =32
Step 2: As we are considering half of the series, divide by two =32/2=16
Required 21R = 16R+5R
16R+5R (belongs to first half do not reverse) =4 (Answer)

Question 3:

If the above sequence is written in reverse order, then which element will be 5th to the right of 16th element from the right end?

TRICK: 

If both are in same direction (subtract)
=To From
=5R - 16R
=11R
=11L (trick: To reverse order change R to L)
=# (Answer)

Question 4:

Which element is seventh to the left of sixteenth element from the right in the above sequence?

TRICK: 

If both are in opposite direction (add)
=To From
=7L + 16R
=23R=W (Answer)