The last line of the solution. I think they have worked it incorrectly.
Thanks
Khurram
Thanks
Khurram
- Attachments
-
- diagnotisc-tough.doc
- (88.5 KiB) Downloaded 247 times
You can also solve this as following.
from 1 we know, n=3^(n-2)
which can be written as, n=(3^n)*3^(-2)
or n=(3^n)/3^2
or n=(3^n)/9
from 2 we know, t=3^n
putting this in first, n=t/9
or t/n=9
so we know t is divisible by n.
Answer C.
