OG2016: 150 is what percent of

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boomgoesthegmat: Senior | Next Rank: 100 Posts; Posts: 93; Joined: Mon Apr 25, 2016 2:22 pm; Thanked: 1 times; Followed by:1 members

OG2016: 150 is what percent of

by boomgoesthegmat » Sun May 01, 2016 9:31 am

150 is what percent of 30?

A) 5%
B) 20%
C) 50%
D) 200%
E) 500%

OA: E

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Source: Beat The GMAT — Problem Solving | Sun May 01, 2016 9:31 am

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Brent@GMATPrepNow: GMAT Instructor; Posts: 16207; Joined: Mon Dec 08, 2008 6:26 pm; Location: Vancouver, BC; Thanked: 5254 times; Followed by:1268 members; GMAT Score:770

by Brent@GMATPrepNow » Sun May 01, 2016 9:43 am

150 is what percent of 30?

A) 5%
B) 20%
C) 50%
D) 200%
E) 500%

The test-makers sometimes like to use different (and tricky) kinds of wording for some percent questions. To be 100% sure of your answer, it might be easiest to PLUG IN the answer choices.
So, we have 150 is __% of 30

Now TEST the answers.
A) 150 is 5% of 30? No... 5% of 30 is 1.5
B) 150 is 10% of 30? No... 10% of 30 is 3
C) 150 is 50% of 30? No... 50% of 30 is 15
D) 150 is 200% of 30? No... 200% of 30 is 60
E) 150 is 500% of 30? YES! 500% of 30 is 150

Answer: E

Cheers,
Brent

Brent Hanneson - Creator of GMATPrepNow.com

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by [email protected] » Sun May 01, 2016 10:57 pm

Hi boomgoesthegmat,

The answer choices to this question are so 'spread out' that you can use a bit of 'brute force' math and some logic to get to the correct answer relatively quickly.

The question asks us what percent of 30 is 150....

Well, 100% of 30 is 30, so we're clearly looking for a larger percent than 100%.

200% of 30 is 60, but we're asked to find a percent that equals 150, so we need one that's far greater than 200%.

There's only one answer left...

Final Answer: E

GMAT assassins aren't born, they're made,
Rich

Contact Rich at [email protected]

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