WHAT IS THE SUM OF FIRST 25 TERMS LYING BETWEEN 100 AND 400? Share with your friends Share 0 S. Usha Rani answered this We need the sum of 101,102,103,...,125. So a=101; d=1; n=25 Sum = n2[2a+(n-1)d]=252[2*101+(25-1)1]=252[202+24]=252(226)=2825 0 View Full Answer
