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Which term will come in the blank in (100,90,\Box,70,60)?

Answer and explanation

Correct answer: 80

In this sequence, each next term is 10 less than the previous term: 100, 90, 80, 70, 60. Therefore, the term after 90 and before 70 is 80. Choosing 75 would not keep the difference between consecutive terms constant. Exam tip: In a missing-term sequence, compare consecutive terms to identify the rule.

Related tags

SequencesMissing TermArithmetic SequenceCommon DifferenceDecreasing SequenceSequences And ProgressionsMathematicsClass 9 Mcq

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