BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

What percent of 20 is Y

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Data Sufficiency |

GMAT/MBA Expert

User avatar
Legendary Member
Posts: 503
Joined: Thu Jul 20, 2017 9:03 am
Thanked: 86 times
Followed by:15 members
GMAT Score:770

by ErikaPrepScholar » Fri Jan 05, 2018 7:24 am
We want to find what percent of 20 Y is. In other words, we want to find:
$$\frac{Y}{20}\cdot100\ =\ ?$$
$$Y\ \cdot\ 5\ =\ ?$$
This means that we can solve if we know the value of Y.

Statement 1
If 50 percent of Y is 5, then $$\frac{50}{100}\cdot Y\ =\ 5$$ $$0.5\cdot Y\ =\ 5$$ $$Y\ =\ 10$$
Sufficient.

Statement 2
If Y percent of 200 is 20, then $$\frac{Y}{100}\cdot200\ =\ 20$$ $$Y\cdot2=\ 20$$ $$Y=\ 10$$
Sufficient.
Image

Erika John - Content Manager/Lead Instructor
https://gmat.prepscholar.com/gmat/s/

Get tutoring from me or another PrepScholar GMAT expert: https://gmat.prepscholar.com/gmat/s/tutoring/

Learn about our exclusive savings for BTG members (up to 25% off) and our 5 day free trial

Check out our PrepScholar GMAT YouTube channel, and read our expert guides on the PrepScholar GMAT blog
Top
Post new topic Post Reply
• Page 1 of 1