Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 22 May 2015, 21:08

### 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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# The town rules in Kid-Town require each house to have at

Author Message
TAGS:
Director
Joined: 08 Jul 2004
Posts: 604
Followers: 2

Kudos [?]: 84 [0], given: 0

The town rules in Kid-Town require each house to have at [#permalink]  15 Sep 2004, 08:06
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
22. The town rules in Kid-Town require each house to have at least a ping-pong table or a soccer-table. If there are 50 houses in Kid-Town, how many houses carry both types of tables?

(1) The number of houses that have a ping-pong table only is 20.

(2) The number of houses that have a soccer table is 40.
Manager
Joined: 27 Aug 2004
Posts: 126
Location: US
Followers: 2

Kudos [?]: 3 [0], given: 0

C

As all the houses should have at least one of the tables, the answer should be 10.
Director
Joined: 08 Jul 2004
Posts: 604
Followers: 2

Kudos [?]: 84 [0], given: 0

Guys have a look at first statement carefully. It says Ping pong 'only' I will post the answer later which I am not convinced of- that might be wrong.
S
Manager
Joined: 02 Apr 2004
Posts: 224
Location: Utrecht
Followers: 1

Kudos [?]: 13 [0], given: 0

I would say E

20 + 35 - 5 = 50
20 + 40 - 10 = 50

Please correct me if I am wrong.

Regards,

Alex
GMAT Club Legend
Joined: 15 Dec 2003
Posts: 4312
Followers: 28

Kudos [?]: 219 [0], given: 0

I was surprised everyone picked C. It seems to me that this is an impossible question. If 20 have "only" ping-pong tables and 40 soccer tables, this means that, with no overlapping, the population will be at least 60 houses. Even with 60 houses, there will be no houses having both tables
_________________

Best Regards,

Paul

Manager
Joined: 02 Apr 2004
Posts: 224
Location: Utrecht
Followers: 1

Kudos [?]: 13 [0], given: 0

Yes, this question was still in my mind, because my previous post is absolutely wrong.

I figured my problem by using an venn diagram and calculation. They each seraparately give an different value for both ping pong and football.

Regards,

Alex
Director
Joined: 05 May 2004
Posts: 577
Location: San Jose, CA
Followers: 2

Kudos [?]: 35 [0], given: 0

This Q is not correct
If X be num of fam having both pingpng+soccer

Then
Tot num of fam = num ping + num soc - ping and soc
= (20+x) + 40 - x = 60 <> 50!!!
Director
Joined: 31 Aug 2004
Posts: 606
Followers: 3

Kudos [?]: 47 [0], given: 0

I choose E.
We know that there are exactly 20 ping pong tables alone, maybe more including double equipment.
So that there are at least and no more than 30 soccer tables, 40 in the stem...
Director
Joined: 08 Jul 2004
Posts: 604
Followers: 2

Kudos [?]: 84 [0], given: 0

Hi all
Here is the answer. can soemone explain this to me or this question is incorrect.

Pay attention to the statements, (1) gives you the exact number of houses who have a ping-pong table only as opposed to the other statement, which tells you that 40 houses have a soccer-table.
There are two possible answers to the question: there are (40 + 20 â€“ 50 = 10) houses with both tables in them or there are 20 houses (the size of the small group).
The answer is not distinct and therefore more sufficient data is required.
Similar topics Replies Last post
Similar
Topics:
1 two states have different rules for 5 06 Jan 2013, 03:10
7 Town Councilor: The only reason for the town to have 17 13 Mar 2012, 20:10
Judicial rules in many states require that the identities of 5 12 Jun 2011, 11:12
1 Judicial rules in many states require that the identities of 4 29 Dec 2007, 22:41
SC - Is there a rule - Each Other and Another 3 18 Dec 2007, 19:29
Display posts from previous: Sort by