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Which value fills the blank in (95,\Box,77,68,59)?

Answer and explanation

Correct answer: 86

Each term in the sequence is 9 less than the preceding term: \(95-9=86\), and \(86-9=77\). Therefore, the missing value is 86. If 88 were used, the difference from 95 would be 7, so the common pattern would not hold. Exam tip: In a missing-term sequence, compare consecutive known terms first to identify the rule.

Related tags

SequencesMissing TermArithmetic ProgressionDecreasing SequenceClass 9 MathematicsSequences And ProgressionsMathematicsClass 9 Mcq

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