the hundred thousands digit of a six-digit even numbers is 3 more than the thousand digit,which is twice the ones digit.give at least four numbers that satisfy the given condition.

Answer 1

the ones digit is 0,2,4,6,8
the 1000's digit is twice the one's, so must be 0,4,8
so far we have

xx0xx0 or xx4xx2 or xx8xx4

now add 3 and we have

3x0xx0 7x4xx2

Now fill in the x's with whatever you want