- A81
- B99
- C180
- D90
Step-by-Step Solution
A 3-digit palindrome has the form ABA. The first digit A can be 1-9 (9 choices, not 0), the middle digit B can be 0-9 (10 choices), and the last digit is fixed equal to A. Total = .
Answer: D) 90
A palindrome reads the same forwards and backwards (like 121 or 535).
How many 3-digit palindromes are there in total?
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