Question

from 0 to 9 four digit numbers can be formed such that the digits are in ascending order is ​

Answer 1

$_{10} P_{4}$

Step-by-step explanation:

Given that,

Digits = 0 to 9

Number to be formed = 4-digit in ascending order

Since the numbers are to be formed in ascending order and in case the 4 numbers are selected randomly, the 4-digit number can be formed through only 1 distinctive way. Let's see

If 1,7,4,5 are randomly selected, it can be arranged to form is 1457.

Thus,

The total number of ways in which the 4 numbers can be selected are $_{10} P_{4}$.

Learn more: Find the digit

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