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5 votes
Can someone help with at least one of the questions in the attachment? thanks

Can someone help with at least one of the questions in the attachment? thanks-example-1

1 Answer

3 votes
for number 7 the pairs you can get are
A,B A,C A,D A,E
B,C B,D B,E
C,D C,E
D,E
So the number of pairs are 10
User Marinell
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