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

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If the roots of the equation 12x^2 - px +5 = 0 is in the [#permalink] New post 30 Jan 2004, 20:31
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
:wall :butt
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 [#permalink] New post 30 Jan 2004, 20:41
:no
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 [#permalink] New post 30 Jan 2004, 20:45
oops its A) 5sqrt :oops :beat 10
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 [#permalink] New post 30 Jan 2004, 20:48
:fart and tommorow we do inequalities :lol:
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 [#permalink] New post 30 Jan 2004, 20:53
Hey Sunni have u ever tried answering questions after this :drunk :drunk :drunk :drunk and this :butt :butt , I am sure it would be this :rocket . Ha ha, hope everybody is enjoying the weekend
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 [#permalink] New post 30 Jan 2004, 21:34
Bhai, please check ur private message. OK time for sleep
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 [#permalink] New post 30 Jan 2004, 21:50
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)
  [#permalink] 30 Jan 2004, 21:50
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