seven persons A,B,C,D,E,F,and G sit in a row facing north.they have different elements name copper,nickel,gold aluminum,silver,iron and mercury. The information is not used in the same order as given.
the one who have gold sits third to the left of D,none of them sits at any other extreme ends.E sits immediate right of the one who have gold .B and E sits adjacent to each other.the one who have iron sits to the left of B .two person sits between G and F.the one who has mercury sits fourth to the right of G. the one who have copper sits immediate right to the one who has silver .the one who have nickel sits to the left of F and to the right of A.