It is currently 17 Nov 2018, 02:35

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# If x is 0.5% of y, then y is what percent of x?

Author Message
TAGS:
GMAT Club Legend
Joined: 07 Jun 2014
Posts: 4710
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 91

Kudos [?]: 1612 [0], given: 375

If x is 0.5% of y, then y is what percent of x? [#permalink]  02 Jun 2018, 03:43
Expert's post
00:00

Question Stats:

40% (01:20) correct 60% (00:30) wrong based on 5 sessions
If x is 0.5% of y, then y is what percent of x?

(A) 199%
(B) 200%
(C) 2,000%
(D) 19,900%
(E) 20,000%
[Reveal] Spoiler: OA

_________________

Sandy
If you found this post useful, please let me know by pressing the Kudos Button

Try our free Online GRE Test

Manager
Joined: 29 Nov 2017
Posts: 190
Location: United States
GRE 1: Q142 V146
WE: Information Technology (Computer Software)
Followers: 0

Kudos [?]: 77 [0], given: 99

Re: If x is 0.5% of y, then y is what percent of x? [#permalink]  05 Jun 2018, 01:28
Can any body explain how to approach such terse questions.
GMAT Club Legend
Joined: 07 Jun 2014
Posts: 4710
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 91

Kudos [?]: 1612 [1] , given: 375

Re: If x is 0.5% of y, then y is what percent of x? [#permalink]  05 Jun 2018, 12:45
1
KUDOS
Expert's post
Explanation

x is 0.5% of y. So if you fix a value of $$y$$, any value at all, you fix x.

Lets do that, say y=100.

x= 0.5% of y or $$x=\frac{0.5}{100} \times y$$=0.5

Now y is what percent of x part. This is where it get a bit tricky!

Now $$\frac{y}{x}=\frac{100}{0.5}=200$$.

Or y is 200 times x. which is 20000%.

Note percent can be broken down as per - cent. Here per means for every (or divided by) and cent means (100).

So for every 100 of x we have $$100 \times 200$$ of y.
_________________

Sandy
If you found this post useful, please let me know by pressing the Kudos Button

Try our free Online GRE Test

Re: If x is 0.5% of y, then y is what percent of x?   [#permalink] 05 Jun 2018, 12:45
Display posts from previous: Sort by