1. Tardigrade
  2. Question
  3. Mathematics
  4. The sum of all 3 -digit numbers less than or equal to 500 , that are formed without using the digit 1 and they all are multiple of 11, is

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The sum of all $3$ -digit numbers less than or equal to $500$ , that are formed without using the digit "$1$" and they all are multiple of $11$, is

JEE MainJEE Main 2021Permutations and Combinations

Solution:

$209,220,231, \ldots, 495$
Sum $=\frac{27}{2}(209+495)=9504$
image
Required $=9501-(231+341+451+319+418)$