Mathematics for IGCSE & O level - Sequences (Section 1 - No. 7) | ExamPlay

Mathematics for IGCSE & O level - Sequences (Section 1 - No. 7)

Which of these is the next two terms of this sequence: 3, 7, 11, 15, ...?

19, 23

18, 22

17, 19

20, 24

Giải thích

The rule is +4. Adding 4 to 15 gives 19, and adding 4 to 19 gives 23.

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