Homework Help: Maths

Posted by Mildred on Monday, October 19, 2009 at 11:20pm.

A palindrome number is one that reads the same both forwards and backwards- for instance. 797 or 44. How many palindromic numbers are there between:

a) 10 and 400
b) 10 and 1000

Thanks

Maths - Mark, Monday, October 19, 2009 at 11:25pm
what is a?
Maths - Mildred, Monday, October 19, 2009 at 11:30pm
Sorry,

a) 10 and 400
b) 10 and 1000
Maths - Mark, Monday, October 19, 2009 at 11:39pm
im not sure im typing as i find them.
A=total of counting the numbers 11,22,33,44,55,66,77,88,99,101,202,303

B) = total counting the numbers
11,22,33,44,55,66,77,88,99,101,202,303,404,505,606,707,808,909
Maths - jim, Tuesday, October 20, 2009 at 8:21am
Mark is right, but for numbers of the form x0x, you can of course use any digit, not just zero, so

101

also implies

111, 121, 131,....

Answer this Question

Related Questions

algebra - A palindrome is a number that reads the same forwards as it does ...
COmbinatorics - A DNA chain is a string of As, Ts, Gs, and Cs. How many DNA ...
number theory - How do you prove that any palindrome, a number that reads the ...
Palindromes - What is a palindrome that means excitement. What is a palindrome ...
algebra - The year 1991 was the last year of the twentieth century whose number ...
math - The year 1991 was the last year of the twentieth century whose number is ...
math - The smallest non-palindromic number whose square is a palindrome?
Discrete Math - Can someone help? Very confused. . . John Sununus was once the ...
Discrete Math - Hi there I'm confused as to how to start this problem, any ...
PALINDROMES - ON THE NUMERS 10 AND 100, HOW MANY OF THEM ARE PALINDROMES? PLEASE...

For Further Reading

First Name:
School Subject:
Answer: