24 divided by square root 2

Problem Solving — algebra and arithmetic (GMAT Focus Edition)
This topic has expert replies
Source: — Quantitative Reasoning |

Newbie | Next Rank: 10 Posts
Posts: 3
Joined: Sat Feb 11, 2012 2:50 pm
Followed by:1 members

by chrish1101 » Fri Mar 23, 2012 1:37 pm
Nevermind...I got it

Master | Next Rank: 500 Posts
Posts: 106
Joined: Wed Mar 23, 2011 4:56 pm
Thanked: 8 times

by seal4913 » Fri Mar 23, 2012 2:54 pm
I'm glad you figured it out. However just in case others may be wondering.

24 is always to equal the sq rt of 2 * sq rt of 2 * 12 (this is because sq rt of 2 times sq rt of 2 is 2)

So (sq rt of 2 * sq rt of 2 * 12)/(sq rt of 2) you can cancel one of the sq rt of 2 out and you are left with sq rt of 2 * 12