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Q: Find the number of prime number less than 20.
  • A. 9
  • B. 7
  • C. 10
  • D. 8
Correct Answer: Option D - Prime mumber less than 20. 2, 3, 5, 7, 11,13, 17 and 19 Hence the number of prime number less than 20 = 8
D. Prime mumber less than 20. 2, 3, 5, 7, 11,13, 17 and 19 Hence the number of prime number less than 20 = 8

Explanations:

Prime mumber less than 20. 2, 3, 5, 7, 11,13, 17 and 19 Hence the number of prime number less than 20 = 8