Alphanumeric Series – Railway Reasoning (Part- 2)

Total Questions: 50

1. From the given numbers 452, 243, 361, 579 and 674, if in each number, the first and the second digits of each number are interchanged, then which of the following will be the highest number? [Group - D 01/09/2022 (Evening)]

(Example-697-First digit = 6, second digit = 9 and third digit = 7)

Correct Answer: (d) 674
Solution:

452, 243, 361, 579, 674
After interchanging first and second digit, 542, 423, 631, 759, 764
Highest number = 764 , that is 674 was the actual number.

2. 85 34 @ 36 # 56 67 * 79 $ 42 48 % 32 81Φ 57 38 ^ 73 / 51 [Group - D 01/09/2022 ( Evening)]

What will be the sum of those odd numbers which are followed by symbols and even numbers which are preceded by symbols?

Correct Answer: (a) 466
Solution:

odd numbers which are followed by symbols = 67, 79, 81, 73
even numbers which are preceded by symbols = 36, 56, 42, 32
Therefore, Sum of these no
= 67 + 79 + 81 + 73 + 36 + 56 + 42 + 32 = 466

3. (Left) 534 945 317 354 781 (Right) (Example: 697-first digit = 6, second digit = 9, third digit = 7) [Group - D 01/09/2022 (Evening)]

NOTE: All operations to be done from left to right.
If all the numbers are arranged in ascending order, the position of how many numbers will remain unchanged?

Correct Answer: (a) 0
Solution:

534 945 317 354 781 317 354 534 781 945 (after arranged in ascending order) So, none of the above numbers position remain unchanged.

4. 3 7 5 2 8 6 4 1 3 7 4 3 7 6 8 2 6 5 8 9 7 8 6 1 2 7 3 [Group - D 02/09/2022 (Morning)]

How many such odd digits are there, each of which is immediately preceded by a perfect square and immediately followed by an odd digit? (NOTE: 1 is also a perfect square)

Correct Answer: (a)Three
Solution:3 7 5 2 8 6 4 1 3 7 4 3 7 6 8 2 6 5 8 9 7 8 6 1 2 7 3
There are three digits which is immediately preceded by a perfect square and immediately followed by an odd digit.i.e. ( 413 ) (137) ,(437)

5. (Left) D 2 R X 5 8 T ^ & 9 3 H 8 C % K T A # 3 T 5 4 $ % 9 & R % 5 (Right) If all the letters are dropped from the series, which of the following will be in the middle of the series formed? [Group - D 02/09/2022 (Morning)]

Correct Answer: (d) #
Solution:

by applying conditions we get , (Left) 2 5 8 ^ & 9 3 8 % # 3 5 4 $ % 9 & % 5 (Right)
Hence, we can see that # is the symbol which lies in the middle of the series.

6. (Left) 429 847 922 213 757 (Right) (Example: 697-first digit = 6, second digit = 9, third digit = 7) [Group - D 02/09/2022 (Morning)]

 NOTE: All operations to be done from left to right
If all the numbers are arranged in descending order, the position of how many numbers will remain unchanged?

Correct Answer: (a) 1
Solution:

Given,
(Left) 429 847 922 213 757 (Right)
According to question If we arrange all numbers in descending order we get ,
922 847 757 429 213
Only 847 is the number which remains the same .

7. (Left) E # R & H & @ J & M N # B & V & & D # P @ W % & Q & A % & # E & (Right) [Group - D 02/09/2022 (Evening)]

If all the symbols are dropped from the series, which of the following will be third from the left?

Correct Answer: (d) H
Solution:Given ,
(Left) E # R & H & @ J & M N # B & V & & D # P @ W % & Q & A % & # E & (Right)
According to question if we remove all symbols from the series then we get ,
E R H J M N B V D P W Q A E So we can say that H is the third letter from the left .

8. A F R C D S Y H N T E D C I D Q A C V Y U I N G R F S C W R [Group - D 02/09/2022 (Evening)]

How many such consonants are there each of which is immediately preceded by a vowel and also immediately followed by a vowel?

Correct Answer: (d) Zero
Solution:Given series :
A F R C D S Y H N T E D C I D Q A C V Y U I N G R F S C W R
There is no consonant which is immediately preceded by a vowel and also immediately followed by a vowel.

9. (Left) B 8 D 5 6 M S 8 # Z @ 7 K $ 2 C B 4 5 N R (Right) [Group - D 05/09/2022 (Morning)]

How many such numbers are there which are immediately preceded by a letter and also immediately followed by a number?

Correct Answer: (d) 2
Solution:Given series :
(Left) B 8 D 5 6 M S 8 # Z @ 7 K $ 2 C B 4 5 N R (Right)
There are two numbers (D 5 6), (B 4 5) which are immediately preceded by a letter and also immediately followed by a number.

10. 7 2 9 6 3 8 3 8 7 7 3 2 7 3 2 2 1 3 3 9 9 7 4 9 9 0 9 [Group - D 05/09/2022 (Afternoon)]

Find the sum of number of occurrences of 7s and number of occurrences of 9s in the given series.

Correct Answer: (c) 11
Solution:

From the series (7 2 9 6 3 8 3
8 7 7 3 2 7 3 2 2 1 3 3 9 9 7 4 9 9 0 9 )
Number of occurrences of 7 = 5
Number of occurrences of 9 = 6
Sum = 5 + 6 = 11