Question

loog
016. From the digits 2.5, 1.0,9 make any four 7-digit numbers using each digit at least once.
Arrange them in descending order.
3
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Answer 1

Answer:

1. hahdvudndbdjdjnfnfnfnnfnfnfgggghhbf
2. nfifnfjjfnfnfnnfmtjfjnfngnf
3. bdnjejfnnfnfnf