1.

Find the sum of odd integers from 1 to 2001.

Answer»

1+3+5+7+9+....+1999+20012001=1+(n-1)22000=2(n-1)n-1=1000n=1001S1001=(1001/2)(1+2001)=1001/2(2002) =1001*1001=1002001



Discussion

No Comment Found

Related InterviewSolutions