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SASMO 2021 Grade 10 Question 8

SASMO · SASMO 2021 Grade 10

Question 8

How many numbers occur in both sequences?
$$7,13,19,25,\ldots,361,367;$$
$$7,16,25,34,\ldots,358,367.$$
  1. 61
  2. 41
  3. 21
  4. 20
  5. None of the above