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

Redeem

MGMAT - FDP Strategies Error

Expert replies
by bml1105 » Thu Dec 19, 2013 2:01 pm
From MGMAT - Fractions, Decimals & Percents Guide = pg 99 Q#6

Bradley owns b video game cartridges. If Bradley's total is 1/3 the total owned by Andrew and four times the total owned by Charlie, how many video game cartridges do the three of them own altogether, in terms of b?

(A) 16/3(b)
(B) 17/4(b)
(C) 13/4(b)
(D) 19/12(b)
(E) 7/12(b)

MGMAT says the answer is C
I think the answer is [spoiler]B (because when I set it up as a ratio - with sample numbers - C:B:A = 1:4:12 we can see there is a total of 17 divided by the 4 that Bradley has)[/spoiler]. If need be I can show my work as well. Can anyone explain how to get the correct answer?
Join the discussion
Source: — Problem Solving |

by GMATGuruNY » Thu Dec 19, 2013 4:04 pm
Your solution is perfect.
The correct answer should be B.
The answer listed in the book is a typo:
https://www.manhattangmat.com/errata-fdp-5ed.cfm
Private tutor exclusively for the GMAT and GRE, with over 20 years of experience.
Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.

As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.

For more information, please email me (Mitch Hunt) at [email protected].
Student Review #1
Student Review #2
Student Review #3
Join the discussion

by bml1105 » Thu Dec 19, 2013 6:18 pm
Thanks! I was starting to go crazy thinking how it could have been the answer they put.
Join the discussion