**The volumes of spheres A and B are in the ratio 125 : 64. If the sum of radii of A and B is 36 cm,then the surface area (in $$ cm^2 $$ ) of A is:** A) $$ 800\\pi $$ B) $$ 512\\pi $$ C) $$ 1600\\pi $$ D) $$ 1024\\pi $$ Click Link for Answer