Refer to the following number and symbol series and answer the question that follows. Counting to be done from left to right only. (All numbers are single-digit numbers only.) (Left) 7 $ 4 1 7 1 9 6 2 + 5 = 6 3 % 7 5 # 8 @ 4 5 & 7 8 (Right)
How many such symbols are there each of which is immediately preceded by an odd number and also immediately followed by an even number?

Given series:

(Left) 7 $ 4 1 7 1 9 6 2 + 5 = 6 3 % 7 5 # 8 @ 4 5 & 7 8 (Right)

Condition to be checked: A symbol immediately preceded by an odd number and immediately followed by an even number.

Odd Number → Symbol → Even Number

(Left) 7 $ 4 1 7 1 9 6 2 + 5 = 6 3 % 7 5 # 8 @ 4 5 & 7 8 (Right)

The patterns that follow the condition are:

1. 7 $ 4

2. 5 = 6 

3. 5 # 8

Thus, there are three such patterns.

Hence, the correct answer is "Option 1".

Mistake Points

Immediately preceded by means immediately before.

Immediately followed by means immediately after.