SOLUTION: three letters P,Q and R are to be arranged. Draw a tree diagram and list the possible arrangements if; repetition is allowed

Question 670572: three letters P,Q and R are to be arranged. Draw a tree diagram and list the possible arrangements if;
repetition is allowed
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
three letters P,Q and R are to be arranged. Draw a tree diagram and list the possible arrangements if;
repetition is allowed
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1st column: P,Q,R
Column to the right of 1st column: P,Q,R to the right of each letter in 1st col
Column to the right of that column: P,Q,R to the rt. of each letter in 2nd col.
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You should have 3 elements in 1st column, 9 elements in 2nd , 27 in 3rd
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Cheers,
Stan H.
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