A school bag contains 12 pens of which 5are red and the other are black. 4pens are selected from the bag How many samples of size 4 contain at most one blackpen?
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A school bag contains 12 pens of which 5are red and the other are black. 4pens are selected from the bag
How many samples of size 4 contain at most one blackpen?
Given,
Total Pens= 12
Red pens=5
Black Pens=7
No of samples of size 4 contain at most one black pen=?
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