Trailing zeroes

This topic has expert replies
Source: — Problem Solving |

User avatar
Legendary Member
Posts: 1077
Joined: Mon Dec 13, 2010 1:44 am
Thanked: 118 times
Followed by:33 members
GMAT Score:710

by bblast » Thu Jul 28, 2011 10:26 pm
Hi,

The no of zeroes in 30! can be found by counting the no of 5's in 30 = 7

so the answer will directly depend on the value of M.

suppose m is 3 so our answer will be 7-3 = 4.
Cheers !!

Quant 47-Striving for 50
Verbal 34-Striving for 40

My gmat journey :
https://www.beatthegmat.com/710-bblast-s ... 90735.html
My take on the GMAT RC :
https://www.beatthegmat.com/ways-to-bbla ... 90808.html
How to prepare before your MBA:
https://www.youtube.com/watch?v=upz46D7 ... TWBZF14TKW_

User avatar
Master | Next Rank: 500 Posts
Posts: 232
Joined: Fri Jun 18, 2010 7:09 am
Thanked: 1 times
Followed by:2 members

by ruplun » Thu Jul 28, 2011 10:45 pm
why will i suppose the value of m to be 3?