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.
(Left) 4 @ 7 4 £ 9 9 # @ 1 4 $ % 4 3 8 2 © © 1 5 # (Right)
How many such numbers are there each of which is immediately preceded by a number
and also immediately followed by a number?

Question

Question

This question was previously asked in

RRB NTPC Graduate Level CBT-I Official Paper (Held On: 06 Jun, 2025 Shift 3)

Answer 1

Given series: (Left) 4 @ 7 4 £ 9 9 # @ 1 4 $ % 4 3 8 2 © © 1 5 # (Right)

According to the question such numbers are there which are immediately preceded by a number and also immediately followed by a number:

Required condition: Number - Number - Number

Thus, there are two such numbers are there which are immediately preceded by a number and also immediately followed by a number.

Hence, "Option 3" is the correct answer.