p. 149 official guide 12th ed

[iv_stoyanov]

Per solution given in the official guide companion, the percent value is plugged in as a number - 40. As far as I know when we talk about x percent of something the number should be plugged as 40/100? This was the only difficulty I had.

[tim]

i don't see any questions on page 149; can you be more specific about which question you're referring to? be sure not to quote any of the questions of course, because that text is copyrighted by the GMAT..

[iv_stoyanov]

I meant problem 149, sorry. This is on p. 173

[jnelson0612]

Per solution given in the official guide companion, the percent value is plugged in as a number - 40. As far as I know when we talk about x percent of something the number should be plugged as 40/100? This was the only difficulty I had.

Just remember this: the word "percent" means "divided by 100". So 40 percent means 40/100. Thus, if a problem says x percent just plug in 40 for x, not 40/100. I hope that this is clear and helpful! :-)