my era

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Questions

The following questions were asked by visitors named my era.

a box contains 20 red,30 black,40 blue,50 white. what will be the minimum number of balls to be drawn without replacement so that you are certain about getting 4 red,5 black,6 blue,7 white balls? A.140 B.97 C.104 D.124
11 years ago

Answers

The following answers were posted by visitors named my era.