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Question

Choose the next number in the series. 2, 19, 53, 70, 104,?

This question was previously asked in
RPF Constable 2018 Question Paper PDF (16-Feb-2019) (Shift 2)
The correct answer is

121

121 is correct.

Find the differences between consecutive terms: \(19-2=17\), \(53-19=34\), \(70-53=17\), \(104-70=34\).

The differences alternate between 17 and 34, so the next difference is 17.

Next term: \(104+17=121\).

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Similar Questions

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Important Questions from Number Series

  1. What will come in place of question mark (?) in the following number series?

    2, 5, 11, 23, 44, 77, ?

  2. What will come in place of question mark (?) in the following number series?

    31, 32, 36, ?, 61, 86

  3. What will come in the place of question mark (?) in the following number series?

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  4. What should come in place of the question mark ‘?’ in the following number series?

    60, 40, 50, ?, 180, 460

  5. A series is given with one term wrong. Select that wrong term from the given alternatives.

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