Unlisted Phone Number Riddle - 16 November
In the city of Brain Teasers, 2% of people do not list their phone numbers. Now if we select random 20 people from the phone directory, then how many people selected will have unlisted phone numbers?
For Solution : Click Here
In the city of Brain Teasers, 2% of people do not list their phone numbers. Now if we select random 20 people from the phone directory, then how many people selected will have unlisted phone numbers?
For Solution : Click Here
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maths
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