Carcass wrote:
Good question but I am a witness of the eras: true I am old.
ten years ago a similar question for the gmat or gre was super tough. Now , if you do your home work, it is moderate
See the patter, no need fancy calculations
32=9
33=27 (here what count for us is the unit digit = 7
34=..1
35=..3
36=..9
So the patter before to repeat itself is 9-7-1-3-9. We do need the 32nd position7 which is 7
7 divided by 2 (82 we care only of the unit digit) = 1
B is the answer
Hi Carcass,
As per me,its should be a cycle of 4 not of 3,I am not sure why you are considering units digit as 7 and taking 3rd power of 3.
3 raise to 1 is 3
3 raise to 2 is 9
3 raise to 3 is unit digit 7
3 raise to 4 is unit digit 1
3 raise to 32
32=8x4,i.e,8 cycles of 4
therefore 3 raise to 32 will have unit digit as 1 which when divided by 82 will yield 1