What is the number of significant figures in (3.20 + 4.80) × 105?

What is the number of significant figures in (3.20 + 4.80) × 105?

Q. What is the number of significant figures in (3.20 + 4.80) × 105?

  1. 2
  2. 3
  3. 4
  4. 5

Answer: 3

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