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Two natural numbers are randomly chosen and multiplied, then the chance that their product is divisible by 5 is

Options

  1. A4 25
  2. B9 25
  3. C16 25
  4. D1 25

Correct answer

B. 9 25

Step-by-step solution

Let E be the event that Q natural number randomly chosen is not divisible by 5 , then P E = 4 5 P (required event) = 1 - P E E = 1 - 4 5 2 = 9 25

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