Jane Street Interview Question

What's 26*27?

Interview Answers

Anonymous

Feb 28, 2012

(25+1)*(25+2)=625+75+2=702

3

Anonymous

Nov 23, 2012

26*27=27^2-27=3^6-27=729-27=702

Anonymous

Jun 22, 2011

702

1

Anonymous

Sep 15, 2012

26*27=(26-3)*30+12=690+12=702