Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
Re: GMATPREP: Stock [#permalink]
19 May 2008, 13:12
Aggree , E .
one more thing I noticed in the answer choice is that unit digit of all the options are different, so while calculating the final answer (26+26^2+26^3)= 26(1+ 26+26^2) , we just have to figure out what will be the unit digit of this term , and that will take no more than 30 sec to solve this problem .