vvkkvv's posts

vvkkvv
replied to Special Tricks for CAT 2011

One correction. If

Last non-zero digit of 10! = 8

then the last non-zero digit of 20! = 8x8x2 (this 2 comes from 20)=8

Last non zero digit of 70!= last non zero digit of (8^7) x2x3x4x5x6x7

http://www.pagalguy.com/forum/quantitative-questions-and-answers/55747-cat-2010-concepts-fundas...

Last non-zero digit of 10! = 8

then the last non-zero digit of 20! = 8x8x2 (this 2 comes from 20)=8

Last non zero digit of 70!= last non zero digit of (8^7) x2x3x4x5x6x7

http://www.pagalguy.com/forum/quantitative-questions-and-answers/55747-cat-2010-concepts-fundas...