Question

Dari huruf M,U,R,I,D,Q,C dapat dibuat 5040 kata. Jika kata ini disusun secara alfabetikal, maka kata MURIDQC akan berada pada urutan ke.....

Answer 1

C...... = 6! = 720
D..... = 6! = 720
I....... = 6! = 720
MC.... =5! = 120
MD...... = 5! = 120
MI........ = 5! = 120
MQ....... = 5! = 120
MR....... = 5! = 120
MUC.... = 4! = 24
MUD..... = 4! = 24
MUI...... = 4! = 24
MUQ.... = 4! = 24
MURC.. = 3! = 6
MURD.. = 3! = 6
MURIC.. = 2! =4
MURIDCQ = 1
MURIDQC = 1
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= 2874