Question

In how many ways 2Ω,3Ωand 6Ω resistance to combine to get equivalent resistance 4Ω

Answer 1

3 and 6 ohm should be connected in parallel
 and this combination must be connected in series with 2 ohms

Answer 2

3Ωand 6Ω resistance should be connected in parallel which will give us 2Ω. then we have
combine this 2Ω with the other 2Ω which will give 4Ω