Question

Average of
3 numbers is 12. First number is
6 less than the average of the other two.
Third number is 6 more than the average
other two. What is the difference
between first and third number?​

Answer 1

Answer:

Difference between them is 60

Step-by-step explanation:

Let the third number be x.

Then, second number be =3x

First number be =2×3x=6x

Given that,

Average of three numbers =40

Sum of three numbers =40×3=120

According to the question,

=> x + 3x + 6x = 120

=> 10x = 120

=> x = 12

Difference between largest and smallest numbers

= 6x − x = 5x = 5*12 = 60.