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An integer is chosen at random in the interval 100 < n < 300.  Find the probability that this integer is divisible by 7 or 11.

 Dec 9, 2019
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(300-100) /7 = ~ 28 numbers

(300-100)/11 = ~18 numbers    

   Some of these numbers are divisible by 7  AND 11          154   231

 

28 + 18 - 2 = 44 numbers    

 

Total numbers    199             44/199

 Dec 9, 2019
edited by ElectricPavlov  Dec 9, 2019

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