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What is the sum of all four-digit numbers formed by using all digits 0, 1, 4, 5 without repetition of digits?
Question

What is the sum of all four-digit numbers formed by using all digits 0, 1, 4, 5 without repetition of digits?

A.

44440

B.

46460

C.

46440

D.

64440

Correct option is D

Solution:

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