Question

pls solve this one. Will mark best one as 'Brainliest'

Answer 1

1+3+5+.......509=65025
√65025=255
255+1+3+5+......253=16384
√16384=128
128+3+5+7+........125=4096
√4096=64=y
y+17=81
√(y+17)=√81=9
Your answer is 9