So, there are three instances where the letter L is immediately preceded by the letter C. Therefore, the correct answer is C) Three.
Q2: How many P's are there in the following series which are followed by Q but not preceded by R?X P Q R P Q R P Q R X P Q R
(a) 1
(b) 2
(c) 3
(d) 4
Ans: (a) 1
Explanation: To find the number of P's that are followed by Q but not preceded by R, let's analyze the sequence:
So far, there are no instances where P is followed by Q but not preceded by R. However, in the fourth occurrence:
There is one instance where P is followed by Q but not preceded by R. Therefore, the correct answer is A) 1.
Q3: How many G's are there in the following sequence which are followed by H but not preceded by F?
R G F H G H F G H G R G H F G H
(a) 1
(b) 2
(c) 3
(d) 4
Ans: (b) 2
Explanation: To find the number of G's that are followed by H but not preceded by F, let's carefully analyze the sequence:
There are two instances where G is followed by H but not preceded by F. Therefore, the correct answer is B) 2.
Q4: How many L's are there in the odd places in the following sequence?
L Q L P L Q P L P L Q Q L P L Q P L
(a) 4
(b) 5
(c) 6
(d) 7
Ans: (a) 4
Explanation: To find the number of L's in the odd places, let's identify the L's at odd positions in the sequence:
There are four instances where L is at an odd position in the sequence. Therefore, the correct answer is A) 4.
Q5: In the following series, how many such numbers are there which are divisible by 4 or 6 and immediately followed by a vowel?
L, 24, H, 18, 36, A, 42, 16, 25, 27, 48, E, 50, 49, 8
(a) Zero
(b) One
(c) Two
(d) Three
Ans: (c) Two
Explanation: To find the numbers that are divisible by 4 or 6 and immediately followed by a vowel, let's examine the given series:
There are two instances where a number is divisible by 4 or 6 and immediately followed by a vowel. Therefore, the correct answer is C) Two.
Q6: How many such letters are there, each of which is followed by a digit divisible by 3, in the following series?
1 2 C 6 9 D 3 5 A 2 8 7 G 9 4 F 6
(a) 1
(b) 2
(c) 3
(d) 4
Ans: (d) 4
Explanation: To find the letters that are followed by a digit divisible by 3, let's examine the given series:
There are four instances where a letter is followed by a digit divisible by 3. Therefore, the correct answer is D) 4.
Q7: How many 6's are there in the following number series, each of which is immediately preceded by a multiple of 3 but not immediately followed by any prime number?
9 6 3 2 6 8 4 6 7 5 2 6 1 4 6 9 3 6 2 6 8 5 7 6 4
(a) One
(b) Two
(c) Three
(d) Four
Ans: (c) Three
Explanation: To find the 6's that are immediately preceded by a multiple of 3 but not immediately followed by any prime number, let's analyze the given series:
There are three instances where a 6 is immediately preceded by a multiple of 3 but not immediately followed by any prime number. Therefore, the correct answer is C) Three.
Q8: David ranks seventeenth from the top in a class of fiftyeight. What will be his rank from the last?
(a) 41st
(b) 42nd
(c) 43rd
(d) 44th
Ans: (b) 42nd
Explanation: David ranks seventeenth from the top in a class of fiftyeight. To find his rank from the last, subtract his rank from the total number of students:
58−17=4158−17=41
So, David's rank from the last is 41st. Therefore, the correct answer is B) 42nd (since counting from the last starts with 1, not 0).
Q9: If the day after tomorrow is Monday, then what day is it today?
(a) Saturday
(b) Sunday
(c) Monday
(d) Tuesday
Ans: (d) Tuesday
Explanation: If the day after tomorrow is Monday, then today is one day before the day after tomorrow. Therefore, today is Sunday, and the correct answer is D) Tuesday.
Q10: Emily remembers that her friend's birthday was between the 8th and 11th of July, while her friend recalls being born after the 9th but before the 12th of July. If both statements are correct, on which date was Emily's friend born?
(a) 9th
(b) 10th
(c) 11th
(d) 9th or 10th
Ans: (b) 10th
Explanation: Combining the information, Emily's friend was born after the 9th but before the 12th of July. Since Emily remembers that her friend's birthday was between the 8th and 11th of July, the only date that satisfies both conditions is the 10th of July. Therefore, the correct answer is B) 10th.
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1. What is an alphanumeric sequence puzzle? 
2. How can I solve an alphanumeric sequence puzzle? 
3. Are there any tips or strategies for solving alphanumeric sequence puzzles? 
4. Can alphanumeric sequence puzzles be solved using mathematical formulas? 
5. How can alphanumeric sequence puzzles benefit students? 

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