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The number of 7 digited numbers which ca...

The number of 7 digited numbers which can be formed using the digits 1, 2, 3, 2, 3, 3, 4 is

A

420

B

840

C

2520

D

5040

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The correct Answer is:
A
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AAKASH SERIES-PERMUTATIONS & COMBINATIONS-PRACTICE EXERCISE
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