How many four-digit whole numbers have four different even digits and a ones digit greater than its thousands digit?
A.
36
B.
54
C.
60
D.
90
Exam No：2018 First Round Grade 6 Year：2018 Question No：35
Answer:
A
Knowledge points:
G6 - Probability - Permutations & Combinations (Simple Listing)
Solution:
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