Question

The average of 3 number is 135 and the difference of others is 25 find the lowest number

Answer 1

Answer:

let the three no.s r=x,y,,z

x+y+z÷3=135

x+y+z=135×3

x+y+z=405

NOW,

x-y-z=25

x+y+z=405(y and z will be cuted)

2x=430

x=430÷2

x=215

y+z=405-215

y+z=190

So it is clear that among z and y one will be the lowest