Permutations and Combinations - Class XI

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Question 1 of 13

From 0 to 9 , four digited numbers can be formed such that
the digits are in ascending order is

Select Your Answer:

${}^{10}{P _4}$

${}^{10}{C _4}$

${}^{10}{P _4} - {}^9{P _3}$

${}^{10}{C _4} - {}^9{C _3}$

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