Two-digit natural numbers are formed, with replacement, from the digits 0 through 9.How many two-digit odd numbers are possible?
Question
Solution 1
Sure, here is the step by step solution:
Step 1: Identify the possible digits for each place in the two-digit number.
For a number to be odd, it must end in 1, 3, 5, 7, or 9. So, there are 5 possibilities for the units place.
Step 2: Identify the possible digits for the tens place.
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