Question

the average of three numbers is 36 the average of two numbers is 48 what is the third number

Answer 1

average of three numbers is 36 so the sum of three numbers is

36×3=108

average of two numbers is 48 so the sum of two numbers is

48×2=96

third number= 108-96

=12

so the third number is 12

Answer 2

Hi ,

Sum of the 3 numbers = 3 × average

= 3 × 36

= 108 ----( 1 )

Sum of the 2 numbers = 2 × 48

= 96 ----( 2 )

Third number = ( 1 ) - ( 2 )

= 108 - 96

= 12

I hope this helps you.

:)