[" Statement-1: The sum of the series "1+(1+2+4)+(4+6+9)+(9+12+16)+quad +],[(361+380+400)" is "8000" ."],[" Statement-2: "sum_(k=1)^(n)(k^(3)-(k-1)^(3))=n^(3)" ,for any natural number "n.],[" (1) Statement-1is true,Statement-2is false."],[" (2) Statement-1is false,Statement- "2" is true."],[" (3) Statement-1is true,Statement-2is true; Statement-2is a correct explanation for Statement- "],[" (4) Statement-1is true,Statement-2is true ; Statement-2is not a correct explanation for Statement-1."]