GATE MT 2020 Q29. Two plates of composition. Fc—lo wt.% Ni and Fe – 20 wt.% Cr – 5 wt.% Ni are Fusion-welded using a filler rod of composition 20 wt, % Ni – 80 wt.% Cr. Contribution to dilution of the weld pool is 20% from each plate. The Ni content in the weld pool is (round off to the nearest integer).