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In the series given below, how many 8’s are there each of which is exactly divisible by its immediate preceding as well as succeeding numbers?
​2 8 4 3 8 5 4 8 2 6 7 8 4 6 2 8 4 1 7 ? 
  • a)
    1  
  • b)
    2
  • c)
    3
  • d)
Correct answer is option 'C'. Can you explain this answer?
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Understanding the Problem
In the given series, we need to identify the occurrences of the number 8 that are exactly divisible by both the numbers immediately before and after them.
Series Breakdown
The series is:
2, 8, 4, 3, 8, 5, 4, 8, 2, 6, 7, 8, 4, 6, 2, 8, 4, 1, 7
Identifying Relevant 8's
We will analyze each occurrence of the number 8:
- First 8 (2, 8, 4)
- Preceding number: 2
- Succeeding number: 4
- 8 is divisible by 2 (8 ÷ 2 = 4) and by 4 (8 ÷ 4 = 2).
- Valid 8
- Second 8 (3, 8, 5)
- Preceding number: 3
- Succeeding number: 5
- 8 is not divisible by 3 (8 ÷ 3 = 2.67) and not divisible by 5 (8 ÷ 5 = 1.6).
- Invalid 8
- Third 8 (4, 8, 2)
- Preceding number: 4
- Succeeding number: 2
- 8 is divisible by 4 (8 ÷ 4 = 2) and by 2 (8 ÷ 2 = 4).
- Valid 8
- Fourth 8 (6, 8, 4)
- Preceding number: 6
- Succeeding number: 4
- 8 is not divisible by 6 (8 ÷ 6 = 1.33) and by 4 (8 ÷ 4 = 2).
- Invalid 8
- Fifth 8 (2, 8, 4)
- Preceding number: 2
- Succeeding number: 4
- 8 is divisible by 2 and by 4.
- Valid 8
- Sixth 8 (4, 8, 1)
- Preceding number: 4
- Succeeding number: 1
- 8 is divisible by 4 and by 1.
- Valid 8
Conclusion
In total, we have three valid occurrences of 8 that meet the criteria. Therefore, the answer is 3.
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In the series given below, how many 8’s are there each of which is exactly divisible by its immediate preceding as well as succeeding numbers?​2 8 4 3 8 5 4 8 2 6 7 8 4 6 2 8 4 1 7 ?a)1 b)2c)3d)4Correct answer is option 'C'. Can you explain this answer? for Class 6 2025 is part of Class 6 preparation. The Question and answers have been prepared according to the Class 6 exam syllabus. Information about In the series given below, how many 8’s are there each of which is exactly divisible by its immediate preceding as well as succeeding numbers?​2 8 4 3 8 5 4 8 2 6 7 8 4 6 2 8 4 1 7 ?a)1 b)2c)3d)4Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 6 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the series given below, how many 8’s are there each of which is exactly divisible by its immediate preceding as well as succeeding numbers?​2 8 4 3 8 5 4 8 2 6 7 8 4 6 2 8 4 1 7 ?a)1 b)2c)3d)4Correct answer is option 'C'. Can you explain this answer?.
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