ssc online exam test cgl

Exercise

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SSC CGL Tier 1 :: QA Test 2
Home » SSC CGL Tier 1 » QA Test 2 » General Questions - Discussion
1 . A bag contains 5 white and 7 black balls and a man draws 4 balls at random. The odds against these being all black is :
[ A ]    7 : 92 [ B ]    92 : 7 right
[ C ]    92 : 99 [ D ]    99 : 92
Answer : Option B
Explanation :
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