How many 7-digit even numbers less than 3 000 000 can be formed using all the digits1, 2, 2, 3, 5, 5, 6 ?
Question
Solution 1
To solve this problem, we need to consider the conditions given:
- The number must be a 7-digit number.
- The number must be less than 3,000,000.
- The number must be even.
- We can only use the digits 1, 2, 2, 3, 5, 5, 6.
Let's solve this step by step:
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