Alphanumeric Series – Railway Reasoning (Part- 2)

Total Questions: 50

21. D & C N E ^ & G ^ Y % % @ G Y & I & * H K Z [Group - D 08/09/2022 (Morning)]

How many consonants are there that are immediately preceded by a symbol?

Correct Answer: (a) Five
Solution:

As per given instructions, consonants which are immediately preceded by a symbol
D & C N E ^ & G ^ Y % % @ G Y & I & * H K Z i.e. (& C), (& G), (^ Y), (@ G) and (* H) There are 5 consonants that are immediately preceded by a symbol.

22. 1 * 2 9 8 4 ! ^ 3 5 4 # 9 ! $ 3 ^ 1 3 & 9 6 8 $ * $ 9 3 [Group - D 08/09/2022 (Morning)]

How many such symbols are there that are immediately preceded by a number and immediately followed by a number?

Correct Answer: (b) 4
Solution:

Given , 1 * 2 9 8 4 ! ^ 3 5 4 # 9 ! $ 3 ^ 1 3 & 9 6 8 $ * $ 9 3
As per given instructions, Symbols that are immediately preceded by a number and immediately followed by a number i.e. (1 * 2), (4 # 9), (3 ^ 1) and (3 & 9)

23. D & C N ^ E G ^ Y T % @ G R I & * H K & Z $ P* ^ [Group - D 08/09/2022 (Morning)]

How many consonants are there that are immediately preceded by a consonant and immediately followed by symbol?

Correct Answer: (d) Three
Solution:

Given, D & C N ^ E G ^ Y T % @ G R I & * H K & Z $ P* ^
Number of consonants which are immediately preceded by a consonant and immediately followed by a symbol i.e. (C N ^), (Y T %) and (H K &)

24. (Left) Ω R 7 & S ∞ 5 ! D @ 4 Y 3 D # W A 6 & F O 7 % D C (Right) [Group - D 08/09/2022 (Afternoon)]

How many such symbols are there in the above series, each of which is immediately preceded by a letter and immediately followed by a number?

Correct Answer: (a) two
Solution:

As per given instruction, symbols each of which is immediately preceded by a letter and immediately followed by a number are:
(Left) Ω R 7 & ( S ∞ 5) ! ( D @ 4) Y 3 D # W   A 6 & F O 7 % D C (Right)
Hence, ( S ∞ 5 ) and ( D @ 4 )

25. P 5 & 8 V O 9 # T 6 H $ 7 F W * 1 L N 4 ? 2 / C U Q ! J 3 > A [Group - D 08/09/2022 (Afternoon)]

If all the odd numbers are dropped from the above series, then find the product of the numbers that come between the third consonant from the right end and &.

Correct Answer: (b) 384
Solution:

As per given instructions, all the odd numbers are dropped from the
series:
P 5 & 8 V O 9 # T 6 H $ 7 F W * 1 L N 4 ? 2 / C U Q ! J 3 > A
After dropping all the odd number from the number series we get,
P & 8 V O # T 6 H $ F W * L N 4 ? 2 / C U Q ! J > A
Now, numbers which come between the 3rd consonant from right end and symbol & are: 8, 6, 4, 2
Their product = 8 x 6 x 4 x 2 = 384

26. (Left) K & ^ 5 G T S P T & B 4 @ 3 # 1 A 3 P H 9 L (Right) [Group - D 08/09/2022 (Afternoon)]

If all symbols are dropped from the series, which of the following will be ninth from the right?

Correct Answer: (d) 4
Solution:

(Left) K & ^ 5 G T S P T & B 4 @ 3 # 1 A 3 P H 9 L (Right)
As per given instructions, after dropping all the symbols from the series
we get,
(Left) K 5 G T S P T B 4 3 1 A 3 P H 9 L (Right)
ATQ, Ninth from the right i.e. 4

27. 7 2 9 6 3 8 3 8 7 2 3 2 7 3 2 2 1 3 3 9 9 7 4 2 9 3 0 9 [Group - D 08/09/2022 (Evening)]

Find the sum of number of occurrences of 2s and number of occurrences of 3s in the given series.

Correct Answer: (c) 13
Solution:

Given , 7 2 9 6 3 8 3 8 7 2 3 2 7 3 2 2 1 3 3 9 9 7 4 2 9 3 0 9
According to question occurrences of 2s in series = 6
And occurrences of 3s in series = 7
Therefore, 7+6 = 13

28. If the first and third digits of each number are interchanged and then the numbers are arranged in descending order, the position of how many numbers will NOT change? [Group - D 09/09/2022 (Morning)]

7451, 3254, 7353, 3464, 1958

Correct Answer: (a) Zero
Solution:

Given, 7451, 3254, 7353, 3464, 1958
By applying the condition as per question we get, 5471, 5234, 5373, 6434, 5918 Now arranging the above series in descending order
we get, 6434, 5918, 5471, 5373, 5234 Hence, there is no such number in the above arrangement which place remains the same. so the answer is zero

29. Each of the digits in the number 8132475 is arranged in descending order from left to right. What will be the sum of the digits which are third from the left and second from the right in the new number thus formed? [Group - D 09/09/2022 (Morning)]

Correct Answer: (d) 7
Solution:

Given number : 8132475 As per question if we arrange all the digits in descending order
we get, 8754321 .
So as per condition the sum of digits which are third from the left and second from the right is, (5+2)= 7

30. (Left) 1 4 6 7 4 3 2 5 6 7 3 4 6 5 1 3 4 5 2 4 5 1 5 7 (Right) [Group - D 09/09/2022 (Morning)]

If every second number from the left in the above series is dropped, which number would appear at the eighth place from the left?

Correct Answer: (c) 1
Solution:

Given,
(Left)146743256734651345245157(Right) By applying condition as per question we get, 1642636 1 4255
From the above arrangement we can say that 1 is the number which appears at the eighth place from the left.