What will come in place of question mark (?) in the following number series?
841, 961, 1089, 1225, 1369, 1521, ?1
1581
2
1681
3
1781
4
1881
5
1981
What will come in place of question mark (?) in the following number series?
841, 961, 1089, 1225, 1369, 1521, ?