Three consecutive energy groups in an ultrane cross section library have scattering cross sections..

Three coherent principle collections in an ultrane wayward minority library own scattering wayward minoritys of 1, 2, and 3 barns. If the principle groups own the identical width, and they are unguarded to a neutron ux of 3 × 108 neutrons/cm2/s, 2 × 108 neutrons/cm2/s, and 1 × 108 neutrons/cm2/s, respectively, what is the scattering wayward minority for the collapsed collection?