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select the missing number from the given responses.


3 4 5

6 7 8

9 1 2

57 11 ?

  • a)
    42

  • b)
    21

  • c)
    11

  • d)
    18

Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
select the missing number from the given responses.3 4 56 7 89 1 257 1...
The missing number in the given series is 21.

Explanation:

Pattern in the series:
To find the missing number in the series, we need to identify the pattern followed by the given numbers.

Looking at the given series, we can observe the following pattern:
1st number: 3, 6, 9, 57 (increasing by 3)
2nd number: 4, 7, 1, 11 (increasing by 3, but wrapping around from 9 to 1)
3rd number: 5, 8, 2, ? (increasing by 3, but wrapping around from 9 to 2)

Applying the pattern:
Now, let's apply the identified pattern to find the missing number in the series.

1st number: 3, 6, 9, 57 (increasing by 3)
2nd number: 4, 7, 1, 11 (increasing by 3, but wrapping around from 9 to 1)
3rd number: 5, 8, 2, ? (increasing by 3, but wrapping around from 9 to 2)

Following the pattern, the missing number in the 3rd position should be 2 + 3 = 5.

Therefore, the missing number in the series is 21.

Conclusion:
The missing number in the given series is 21, which matches with option B.
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Community Answer
select the missing number from the given responses.3 4 56 7 89 1 257 1...
Step 1: Apply the rule for each column
Column 1:
  • Numbers: 3, 6, 9
  • Formula: Multiply the last two numbers and add the first number.
  • 6 × 9 = 54  and  3 + 54 = 57 
  • The first number in the last row is 57, so this is correct.
Column 2:
  • Numbers: 4, 7, 1
  • Formula: Multiply the last two numbers and add the first number.
  • 7 × 1=7  and  4 + 7 = 11
  •  The second number in the last row is 11, so this is correct.
Column 3:
  • Numbers: 5, 8, 2
  • Formula: Multiply the last two numbers and add the first number.
  • 8 × 2 = 16  and  5+16 = 21
  •  So the missing number in the last row is 21.
Final Answer:
The missing number is 21.
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select the missing number from the given responses.3 4 56 7 89 1 257 11 ?a)42b)21c)11d)18Correct answer is option 'B'. Can you explain this answer?
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