MathematicsMedium178×since 2002Q5344Let an\mathrm{a}_{\mathrm{n}}an be the nth \mathrm{n}^{\text {th }}nth term of the series 5+8+14+23+35+50+…5+8+14+23+35+50+\ldots5+8+14+23+35+50+… and \mathrm{S}_{\mathrm{n}}=\sum_\limits{k=1}^{n} a_{k}. Then S30−a40\mathrm{S}_{30}-a_{40}S30−a40 is equal to :A11280B11290C11310D11260Check answerSkip