There are 30 socks in a drawer. 60% of the socks are red and the rest are blue. What is the minimum number of socks that must be taken from the drawer without looking in order to be certain that at least two blue socks have been chosen?

20
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SWATHI

  • Jul 9th, 2006
 

30*60/100=18 are Red and 12 Are Blue

In order to be sure to get 2 Blue Balls is 18+2=20

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