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

Question

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

CounterSniper · Accepted Answer

x =  \frac{sv^2}{4} 
also
x=25s
substituting the values 
25s= \frac{sv^2}{4} 
v^2=100
v=10

Abhishek009 · Answer

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)

MathRevolution · Answer

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

=>  \frac{x}{s} * 4 = v^2

=>  25 * 4 = v^2

=>  100 = v^2

=>  v = 10

Answer B

zaidi1212 · Answer

x = 1/4 sv2
x/s = 25

-> x/s = 25 = 1/4 v2
v2 = 100
-> v = 10

bumpbot · Answer

Automated notice from GMAT Club BumpBot: 

A member just gave Kudos to this thread, showing it’s still useful. I’ve bumped it to the top so more people can benefit. Feel free to add your own questions or solutions.

 This post was generated automatically.

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

Prep Toolkit

Top 5 GMAT Debrief Videos

615 to 715 in 15 Days (Ria's Strategies)

More than Quant/Verbal Abilities: Speed vs. Accuracy

745 with Only Self-Prep and GMAT Club

From 555 to 765: 210-point Improvement

Perfect 805 Score Debrief by Julia

My Rewards

GMAT Problem Solving (PS) Questions