How many times can we write 0 in hundred place between 4000 to 4999?
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There are 1000 number from 4000–4999 both inclusive. Since, 4 is already fixed in thousands position, we have 9 possibilities (0–9) in hundreds. As we cannot use the same number again, we have 8 possibilities in tenths position and similarly 7 possibilities in units.04-Apr-2018
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