Find the average of the first four prime numbers greater than10

  • A 20
  • B 19
  • C 17
  • D 15
waec 2004mathematics

The correct answer is D. 15

First four prime numbers greater than 10 are 11, 13, 17, 19

The average \(= \frac{11+13+17+19}{4}=15\)

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