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# Basic Probability

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A number is selected at random from 1 through 100, inclusive. What is the probability that the number is a divisor of 50? Express your answer as a common fraction.

Apr 24, 2019

#1
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There are a 100 integers between 1-100, inclusive. Since 50 is $$2*5^2$$, it has $$(1+1)(1+2)=(2)(3)=6$$ factors. Thus, the answer is $$\frac{6}{100}=\boxed{\frac{3}{50}}.$$

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Apr 24, 2019
#2
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Nice, tertre!!!!!

CPhill  Apr 25, 2019