Question 228530
dear student,
let three consecutive even no are
x and x+2 and x+4 as difference between every 2 concutive no is 2
x *(x+4)=10(x+2)-4
as per given instruction
solving 
x^2+4x=10x+20-4
x^2+4x-10x=16
x^2-6x-16=0
x(x-8)+2(x-8)=0
(x-8)(x+2)=0
x=8 or x=-2 impossible as even no
so x=8 is the correct answer
no are 8, 10, 12.....
thanks 
faithfully
mangesh joshi