Math
posted by B.B. .
Did I do this problem right?
How many three symbol codes (letternumbernumber) can be made from the letters S,P,Y and two digits from the set {0,1,2,...,9} without repetition?
Answer: 3*10*9=270.

correct
posted by B.B. .
Did I do this problem right?
How many three symbol codes (letternumbernumber) can be made from the letters S,P,Y and two digits from the set {0,1,2,...,9} without repetition?
Answer: 3*10*9=270.
correct