Question

among the numbers,the first is twice the second and thrice the third, if the average of 3 numbers is 517,then what's the difference between the first and 3rd number​

Answer 1

Answer:

6y+3y+2y = 517*3=1551

11y = 1551

y= 1551/11

141

First no. - third no. =6y-2y=4y=4*141=564

hope it helps!