Find the mean of all even numbers that can be formed using exactly three of the digits 2,3,5, and 7.

Question

 Find the mean of all even numbers that can be formed using exactly three of the digits 2,3,5, and 7.

Answer 1

Hi Jatt, we are looking for all numbers ending with the 2.

 

Examples:

 

352

372

532

572

732

752

 

To find the mean, add the six numbers and divide by 2

 

3312 / 6, or 552

 

The mean is 552.

 

Questions?