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Grade 11Analytical Geometry

a key to room c3 is dropped into a jar with five other key,and the jar is throughly mixed . if keys are randomly drawbfrom tge jar without replacement until the keys to room c3 is chosen, then what are the odd that the keys to room c3 will be obtained on the 2nd try

Profile image of VRUSHABH
8 Years agoGrade 11
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1 Answer

Profile image of Kartikey Sakare
8 Years ago
Even though it is 1st chance, the probability to get the key to room C-3 is 1/6...let`s start from the origin. ..room to C-3 mixed with the other 5 ...the total number of keys becomes 6...and if we try to find out our desired key randomly , we will come to know that it`s 1/6 times we could find the key. ..even if chance is the 2nd or 3rd one...#prasadsakare@IITaspirant__