5 8 15 6 11 ? 35 96 210
Sequence Pattern Analysis
The question provides a sequence of digits: 5, 8, 1, 5, 6, 1, 1, ?, 3, 5, 9, 6, 2, 1, 0. We need to find the value of the question mark (?) based on an underlying pattern.
Identifying the Pairing and Summing Pattern
Let's analyze the sequence by grouping consecutive digits into pairs and calculating the sum of the digits within each pair:
- Pair 1: The digits are 5 and 8. Their sum is $5 + 8 = 13$.
- Pair 2: The digits are 1 and 5. Their sum is $1 + 5 = 6$.
- Pair 3: The digits are 6 and 1. Their sum is $6 + 1 = 7$.
- Pair 4: The digits are 1 and ?. Their sum is $1 + ?$.
- Pair 5: The digits are 3 and 5. Their sum is $3 + 5 = 8$.
- Pair 6: The digits are 9 and 6. Their sum is $9 + 6 = 15$.
- Pair 7: The digits are 2 and 1. Their sum is $2 + 1 = 3$.
- Pair 8: The last digit is 0. Assuming it forms a pair, the sum is $0$.
The sequence of sums generated is 13, 6, 7, ($1 + ?$), 8, 15, 3, 0.
Determining the Missing Number
We observe that the sum of the digits in the very first pair (5, 8) is 13.
Since 13 is present as an option and matches this initial calculation, it suggests the pattern relates to the sum of the first pair.
Therefore, the value that should replace the question mark (?) is 13.
Conclusion
Following the pattern where the missing number equals the sum of the first pair of digits:
$ ? = 5 + 8 = 13 $The missing number is 13.
Similar Questions
Study the given pattern carefully and select the number from among the given options that can replace the question mark (?) in it.
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$B_{3}$ $E_{4}$ $H_{7}$ $K_{8}$ $N_{9}$ ? $T_{11}$ $W_{13}$ $Z_{24}$ - Study the given pattern carefully and select the number that can replace the question mark (?) in it.
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Important Questions from Missing Number in Matrix
Study the given pattern carefully and select the number from among the given options that can replace the question mark (?) in it.
24
36
32
6
3
?
12
2
24
12
54
24
Study the given pattern carefully and select the number that can replace the question mark (?) in it.
3 5 7 23 27 31 69 135 ? Study the given matrix carefully and select the number from among the given options that can replace the question mark(?) in it.
13 6 75 15 8 ? 18 4 70 Study the given pattern carefully and select the number from among the given options that can replace the question mark (?) in it.
15 81 12 18 99 15 17 120 ? Study the given pattern carefully and select the number from among the given options that can replace the question mark (?) in it.
18 24 19 7 8 9 8 11 14 17 ? 14
