Find the one which does not belong to that group ?
Correct answer: D. 862
- A. 358
- B. 246
- C. 134
- D. 862
Explanation
In 358, 3 + 5 = 8; in 246, 2 + 4 = 6; and in 134, 1 + 3 = 4. In 862, 8 + 6 = 14, not 2, so it breaks the digit-sum pattern. A student may choose 358 because it is the only option beginning with an odd digit, but parity is not the intended rule.
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About Sequences and Series
Sequences describe ordered terms formed by a pattern, while series represent the sum of those terms. Questions cover arithmetic and geometric sequences, their nth terms, common difference or ratio, finite sums, and applications, with the sequence itself kept distinct from the corresponding series.
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