If ${\mathrm{s}}_1, {\mathrm{s}}_2, {\mathrm{s}}_3\dots \dots {\mathrm{s}}_{\mathrm{q}}$ are the sums of n terms of q A.P.'s whose first terms are 1, 2, 3 ....q and common differences are 1,3,5, ..... (2q–1), respectively then ${\mathrm{s}}_1+{\mathrm{s}}_2+{\mathrm{s}}_3+\dots +{\mathrm{s}}_{\mathrm{q}}=$