Question

find 'n' if Sn is the sum of all odd numbers from 1 to 150​

Answer 1

Answer:

3,5,7,9,11,13,15,17,1,21,23,25,27,29,31,33,35,37,39,41,43,4547,49,51... odd no. don't comes in the table of 2 so I can easy find them and the last digit of any no. is always2,4,6,8,0 so u can easily find even no and the remaining are odd

Answer 2

62489655855886577847752688458