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

 It is currently 22 May 2015, 01:20

### 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

# If the roots of the equation 12x^2 - px +5 = 0 is in the

Author Message
TAGS:
Senior Manager
Joined: 30 Aug 2003
Posts: 330
Location: BACARDIVILLE
Followers: 1

Kudos [?]: 1 [0], given: 0

If the roots of the equation 12x^2 - px +5 = 0 is in the [#permalink]  30 Jan 2004, 19:31
If the roots of the equation 12x^2 - px +5 = 0 is in the ratio of 3:2 find the value of p.

a. 5sqrt10
b. 5
c. 5sqrt2
d. 5sqrt3

_________________

Pls include reasoning along with all answer posts.
****GMAT Loco****
Este examen me conduce jodiendo loco

Senior Manager
Joined: 30 Aug 2003
Posts: 330
Location: BACARDIVILLE
Followers: 1

Kudos [?]: 1 [0], given: 0

_________________

Pls include reasoning along with all answer posts.
****GMAT Loco****
Este examen me conduce jodiendo loco

Manager
Joined: 26 Dec 2003
Posts: 227
Location: India
Followers: 1

Kudos [?]: 2 [0], given: 0

oops its A) 5sqrt 10
Senior Manager
Joined: 30 Aug 2003
Posts: 330
Location: BACARDIVILLE
Followers: 1

Kudos [?]: 1 [0], given: 0

and tommorow we do inequalities
_________________

Pls include reasoning along with all answer posts.
****GMAT Loco****
Este examen me conduce jodiendo loco

Manager
Joined: 26 Dec 2003
Posts: 227
Location: India
Followers: 1

Kudos [?]: 2 [0], given: 0

Hey Sunni have u ever tried answering questions after this and this , I am sure it would be this . Ha ha, hope everybody is enjoying the weekend
Manager
Joined: 26 Dec 2003
Posts: 227
Location: India
Followers: 1

Kudos [?]: 2 [0], given: 0

Bhai, please check ur private message. OK time for sleep
SVP
Joined: 30 Oct 2003
Posts: 1797
Location: NewJersey USA
Followers: 5

Kudos [?]: 41 [0], given: 0

roots are a and b for equation
12x^2-px+5 or x^2-x * p/12 + 5/12
so
1) a+b = p/12
2) ab = 5/12
3) we also know that a/b = 3/2
from 2) and 3) b = sqrt(5/18) and a = sqrt(5/8)

Use Eq 1 and you will get p = 5sqrt(10)
Similar topics Replies Last post
Similar
Topics:
(x^2 + x - 12)/(x - 2) = 0, What are the solutions for x? 10 05 Apr 2011, 04:59
9 If one root of x^2+px+12=0 is 4, and the equation x^2+px+q=0 7 09 Dec 2010, 06:39
2 5 roots in one equation 4 14 Jan 2010, 04:31
roots of equation 3 11 Nov 2009, 08:22
If the curve represented by x^2 + 5px + 8 =0 has no 1 09 Aug 2006, 02:43
Display posts from previous: Sort by