JEE Mains · Maths · STD 11 - 6. permutation and combination
A number is called a palindrome if it reads the same backward as well as forward. For example \(285582\) is a six digit palindrome. The number of six digit palindromes, which are divisible by \(55\), is ...... .
- A \(110\)
- B \(1000\)
- C \(10\)
- D \(100\)
Answer & Solution
Correct Answer
(D) \(100\)
Step-by-step Solution
Detailed explanation
\(5\) \(a\) \(b\) \(b\) \(a\) \(5\) It is always divisible by \(5\) and \(11 .\) So, required number \(=10 \times 10=100\)
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