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The number of four-digit numbers strictl...

The number of four-digit numbers strictly greater than 4321 that can be formed using the digits 0, 1, 2, 3, 4, 5 (repetition of digits is allowed) is

A

306

B

310

C

360

D

288

Text Solution

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The correct Answer is:
B
Following are the cases in which the 4 - digit numbers strictly greater than 4321 can be formed using digits 0, 1, 2, 3, 4, 5 (repetition of digits is allowed)


So, required total numbers = 4 + 18 + 72 + 216 = 310
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