Ayam33802idn
Answered

Join IDNLearn.com and start exploring the answers to your most pressing questions. Get the information you need from our community of experts who provide accurate and comprehensive answers to all your questions.

2. A palindrome is a number or a word that is the same in the two directions: left to right and vice
versa. Example of palindromes: dad, mom, noon, karak, 22, 121, 3443. How many palindrome
numbers can you make with 4 digits, with the possibility of repeating the digits? *
*8100
*8102
*8104
*8098

Sagot :

Jcherry99idn

Answer:

90 between 1000 and 9999

Step-by-step explanation:

The first digit cannot be 0. It can be nine other digits.

The second digit can be anything between 0 and 9.

To be palindromic the 2nd and 3rd digits must be the same.

And in addition, the 1st and 4 numbers must be the same.

So the answer is 9 * 10 = 90. That does seem too small, but try making a palindrome with the restrictions I have outlined. None of the examples you have given beginning with 8 are palindromic.

8118 is palindromic

8998 is also palindromic

9009 is palindromic

2002 is palindromic

There are only 90 of them.

Thank you for using this platform to share and learn. Don't hesitate to keep asking and answering. We value every contribution you make. Discover insightful answers at IDNLearn.com. We appreciate your visit and look forward to assisting you again.