word problem

Expert replies

sud21: Master | Next Rank: 500 Posts; Posts: 344; Joined: Sat Nov 12, 2011 3:21 amFollowed by: 2 members; Thanked: 1 times

by sud21 » Sat Jan 28, 2012 11:36 pm

28 people admitted to hospital come for surgery, but not all the people admitted to hospital come for surgery. How many people in total are admitted to the hospital?
1). 40% of the people admitted to the hospital come for surgery
2). the people who do not come for surgery is 50% greater than the people who come for surgery

Like this post

Source: Beat The GMAT — Data Sufficiency | Sat Jan 28, 2012 11:36 pm

neelgandham: Community Manager; Posts: 1060; Joined: Fri May 13, 2011 6:46 amFollowed by: 52 members; Location: Utrecht, The Netherlands; Thanked: 318 times

by neelgandham » Sun Jan 29, 2012 10:00 am

28 people admitted to hospital come for surgery, but not all the people admitted to hospital come for surgery. How many people in total are admitted to the hospital?

1). 40% of the people admitted to the hospital come for surgery

Let x be the number of people admitted to the hospital, then the number of people admitted to hospital for surgery = (40/100)x = 28, i.e. x = 70.
Sufficient to answer the question.

2). the people who do not come for surgery is 50% greater than the people who come for surgery

Let y(=28) be the number of people admitted to hospital for surgery, then 1.5y is the number of people who do not come to hospital for surgery. Total number of people admitted to the hospital = 2.5y =2.5*28 = 70
Sufficient to answer the question.

IMO D

Anil Gandham
Welcome to BEATtheGMAT | Photography | Getting Started | BTG Community rules | MBA Watch
Check out GMAT Prep Now's online course at https://www.gmatprepnow.com/

Like this post

Post new topic Post Reply

• Page 1 of 1

GMAT Course Reviews

560 reviews

1168 reviews

431 reviews

359 reviews

147 reviews

5/5

5 Star (560 Reviews)

"Target Test Prep is the closest to the official version of the GMAT exam, about 99% accuracy in terms of the quality and quantity of information. The course has excellently created singular sets of focused lessons and tests for every possible topic that one could come across in the official GMAT exam."

"The TTP course maximizes the efficiency of the time you spend studying. It will take time and effort but I could almost guarantee that if you complete the course exactly as it is laid out you will get an amazing score. They also have a very responsive team willing to help with any questions you might have."

"TTP has two things that I think no other test prep company offers: A teaching approach that reinforces understanding and an attitude that will give you the mental preparedness needed to succeed on the test. TTP gives you a deep understanding of the concept you need to know while teaching you how to think."

Write a Review