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SASMO 2020 Grade 9 Question 9

SASMO · SASMO 2020 Grade 9

Question 9

What is the next number in the sequence $16,37,58,89,145,42,\ldots$?

Interpretation: Use the intended rule: each new term is the sum of the squares of the decimal digits of the previous term.
  1. 20
  2. 31
  3. 72
  4. 96
  5. None of the above