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Find the probability that a number selected at random from 40 to 50 is a...

Mathematics
JAMB 1986

Find the probability that a number selected at random from 40 to 50 is a prime

  • A. \(\frac{2}{11}\)
  • B. \(\frac{5}{11}\)
  • C. \(\frac{3}{11}\)
  • D. \(\frac{4}{11}\)
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Correct Answer: Option C
Explanation

From 40 to 50 = these number are prime i.e. 41, 43, 47

prob. of selecting a prime No. is \(\frac{3}{11}\)

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