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How many integers between 2022 and 2388 have four distinct digits arranged in an increasing order?.

Sagot :

Wilbur

Answer:

The total number of integers between 2020 and 2400 have four distinct digits arranged in increasing order is 15.

Explanation:

Given :

Numbers  --  2020 and 2400

The following steps can be used in order to determine the total number of integers between 2020 and 2400 have four distinct digits arranged in increasing order:

Step 1 - According to the given data, there are two numbers 2020 and 2400.

Step 2 - So, the integers having four distinct digits arranged in increasing order are:

2345, 2346, 2347, 2348, 2349, 2356, 2357, 2358, 2359, 2367, 2368, 2369, 2378, 2379, and 2389.

Step 3 - So, the total number of integers between 2020 and 2400 have four distinct digits arranged in increasing order is 15.