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CBSE Class 6  >  Class 6 Test  >  Science Olympiad   >  Olympiad Test: Alpha-Numeric Sequence Puzzle - 1 - Class 6 MCQ

Olympiad Test: Alpha-Numeric Sequence Puzzle - 1 - Free MCQ with solutions


MCQ Practice Test & Solutions: Olympiad Test: Alpha-Numeric Sequence Puzzle - 1 (10 Questions)

You can prepare effectively for Class 6 Science Olympiad Class 6 with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Olympiad Test: Alpha-Numeric Sequence Puzzle - 1". These 10 questions have been designed by the experts with the latest curriculum of Class 6 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 15 minutes
  • - Number of Questions: 10

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Olympiad Test: Alpha-Numeric Sequence Puzzle - 1 - Question 1
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How many C's are there in the following sequence, which are immediately preceded by D?
A B D C D C C D C L C D D C I D C C D

Detailed Solution: Question 1

Here's the sequence broken down with spaces for clarity:

A B D C D C C D C L C D D C I D C C D

Now, let's check each occurrence of C:

  1. The first C: preceded by D (D C)
  2. The second C: preceded by D (D C)
  3. The third C: not preceded by D (C C)
  4. The fourth C: preceded by D (D C)
  5. The fifth C: not preceded by D (L C)
  6. The sixth C: not preceded by D (C D)
  7. The seventh C: preceded by D (D C)
  8. The eighth C: preceded by D (D C)
  9. The ninth C: not preceded by D (C C)
  10. The tenth C: not preceded by D (C D)

There are five C's that are immediately preceded by D. Therefore, the correct option is: Five

Olympiad Test: Alpha-Numeric Sequence Puzzle - 1 - Question 2
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How many digits are there in the following sequence, which are divisible by 2 and immediately followed by a letter?
M 2 B 6 5 P 5 1 9 4 H 3 S 2 7

Detailed Solution: Question 2

There are two digits in the sequence that are divisible by 2 and immediately followed by a letter. The digits are 2 and 4.

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Olympiad Test: Alpha-Numeric Sequence Puzzle - 1 - Question 3
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How many customers are there in this series which are followed by 5 but not preceded by 4?
J Q 7 9 T 7 9 5 2 3 W 1 0 3 4 7 5

Detailed Solution: Question 3

J Q 7 9 T 7 9 5 2 3 W 1 0 3 4 7 5

There are six characters in the sequence that are followed by 5 but not preceded by 4. The digits are 2 3 W 1 0 3

Olympiad Test: Alpha-Numeric Sequence Puzzle - 1 - Question 4
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How many P's are there in the odd places in the following sequence?
P P P P Q P Q P Q P Q Q P P P Q Q P P P

Detailed Solution: Question 4

There are five occurrences of P in the sequence that are in odd places.

Olympiad Test: Alpha-Numeric Sequence Puzzle - 1 - Question 5
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How many C's are there between two consonants in the following sequence?
A B C D C D C E C E C F C O C I C J C K C C K

Detailed Solution: Question 5

There are four C's in the sequence that appear between two consonants: C D C, C D C, C F C, C K C.

Olympiad Test: Alpha-Numeric Sequence Puzzle - 1 - Question 6
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In the following series, how many such numbers are there which are divisible by 3 or 5 and immediately followed by a consonant?
M, 19, W, 3, 25, A, 35, 20, 22, 21, 45, H, 47, 48, 9

Detailed Solution: Question 6

The given series is: M, 19, W, 3, 25, A, 35, 20, 22, 21, 45, H, 47, 48, 9

Let's go through each number in the series:

  • 19 (not divisible by 3 or 5)
  • 3 (divisible by 3, followed by 25, which is not a consonant)
  • 25 (divisible by 5, followed by A, which is not a consonant)
  • 35 (divisible by 5, followed by 20, which is not a consonant)
  • 20 (not divisible by 3 or 5)
  • 22 (not divisible by 3 or 5)
  • 21 (divisible by 3, followed by 45, which is not a consonant)
  • 45 (divisible by 3 and 5, followed by H, which is a consonant)
  • 47 (not divisible by 3 or 5)
  • 48 (divisible by 3, followed by 9, which is not a consonant)
  • 9 (divisible by 3, followed by end of the series)

The only number that meets the criteria is 45, as it is divisible by 3 and 5 and is immediately followed by the consonant H.

Therefore, the correct answer is:

3 One

Olympiad Test: Alpha-Numeric Sequence Puzzle - 1 - Question 7
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How many such letters are there each of which are followed by a digit divisible by 2 in the following series?
3 4 A 9 6 1 B C 2 4 5 H 4 3 D 9 2 P

Detailed Solution: Question 7

The letters A, B, and C are each followed by a digit (9, C, and 2 respectively) that is divisible by 2.

Olympiad Test: Alpha-Numeric Sequence Puzzle - 1 - Question 8
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How many 6's are there in the following series each of which is immediately preceded by 5 but not immediately followed by P?
5 6 A 6 7 E 5 6 P 6 8 5 9 B 5 6 D 6 H 6 5 L 6 K 6 5 G 5 6 N 5 6 8

Detailed Solution: Question 8

There are four occurrences of 6 that are immediately preceded by 5 but not immediately followed by P: 5 6, 5 6, 5 6, 5 6.

Olympiad Test: Alpha-Numeric Sequence Puzzle - 1 - Question 9
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Find the total number of C's each of which is immediately followed by a vowel in this sequence?
B C C D E E C E A C E A C E A B C A B C A C A C A C B C

Detailed Solution: Question 9

There are seven occurrences of C in the sequence that are immediately followed by a vowel (A or E).

Olympiad Test: Alpha-Numeric Sequence Puzzle - 1 - Question 10
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How many m's are there in the even places in the sequenceA a c d j d j d m m m m d s m m s m m s m s

Detailed Solution: Question 10

Even positions are 2,4,6,8,10,12,14,16,18,20,22.
The letters at these positions are:2→a, 4→d, 6→d, 8→d, 10→m, 12→m, 14→s, 16→m, 18→m, 20→s, 22→s.
Count of m's = 4 (positions 10, 12, 16, 18).

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About this Class 6 Practice Test

This test contains 10 MCQs on Olympiad Test: Alpha-Numeric Sequence Puzzle - 1 with detailed solutions for each question. It is part of the Science Olympiad Class 6 course on EduRev, designed to align with the current Class 6 syllabus. Each solution explains not just the correct answer but also gives you an understanding of the topic — not just to attempt the question but also help you prepare for the exam with practice.

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If you found this Olympiad Test: Alpha-Numeric Sequence Puzzle - 1 MCQ Test helpful, you can further enhance your Class 6 preparation with in-depth courses on EduRev, for all the subjects and topics available in Science Olympiad Class 6 course. The course offers:
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