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The number of four digit numbers that do not contain 4 different digits is:
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a
4464
b
3680
c
4120
d
7208
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Correct option is A
The number of 4 digit numbers is (9) (10) (10) (10), out of these (9) (9) (8) (7) have distinct digits..=9000 -4536 =4,464Similar Questions
If then equal to
799 666 8865
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