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Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.  x=(1/4)sv^2 In the formula shown, if x/s = 25 and v > 0, what is the v

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Director  D
Joined: 24 Oct 2016
Posts: 535
GMAT 1: 670 Q46 V36 GMAT 2: 690 Q47 V38 x=(1/4)sv^2 In the formula shown, if x/s = 25 and v > 0, what is the v  [#permalink]

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Difficulty:   5% (low)

Question Stats: 97% (00:49) correct 3% (00:28) wrong based on 76 sessions

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x=(1/4)sv^2
In the formula shown, if x/s = 25 and v > 0, what is the value of v ?

A) 9
B) 10
C) 11
D) 29
E) 100

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Director  G
Joined: 20 Feb 2015
Posts: 756
Concentration: Strategy, General Management
Re: x=(1/4)sv^2 In the formula shown, if x/s = 25 and v > 0, what is the v  [#permalink]

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dabaobao wrote:
x=(1/4)sv^2
In the formula shown, if x/s = 25 and v > 0, what is the value of v ?

A) 9
B) 10
C) 11
D) 29
E) 100

x = $$\frac{sv^2}{4}$$
also
x=25s
substituting the values
25s=$$\frac{sv^2}{4}$$
v^2=100
v=10
Board of Directors D
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4784
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
Re: x=(1/4)sv^2 In the formula shown, if x/s = 25 and v > 0, what is the v  [#permalink]

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dabaobao wrote:
x=(1/4)sv^2
In the formula shown, if x/s = 25 and v > 0, what is the value of v ?

A) 9
B) 10
C) 11
D) 29
E) 100

$$x=(\frac{1}{4})sv^2$$

Or, $$\frac{x}{s} = (\frac{1}{4})v^2$$

Or, $$25 = (\frac{v^2}{4})$$

Or, $$v^2 = 100$$

So, $$v = 10$$ , as $$v > 0$$ , Answer must be (B)
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Abhishek....

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x=(1/4)sv^2 In the formula shown, if x/s = 25 and v > 0, what is the v

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