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What is the probability that an integer x \((1 \leq x \leq 25)\) chosen at...

Mathematics
JAMB 2013

What is the probability that an integer x \((1 \leq x \leq 25)\) chosen at random is divisible by both 2 and 3?
  • A. \(\frac{1}{25}\)
  • B. \(\frac{1}{5}\)
  • C. \(\frac{4}{25}\)
  • D. \(\frac{3}{4}\)
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Correct Answer: Option C
Explanation
\((1 \leq x \leq 25)\) = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25}

Number N of x divisible by both 2 and 3 is 4.

n(\(\varepsilon\)) = 25

= \(\frac{N}{n(\varepsilon)}\)

= \(\frac{4}{25}\)

There is an explanation video available below.


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Explanation Video

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