Understanding Velocity Ratios: Derivation and Confusion Explained

[Manasan3010]

Homework Statement

Two particles of mass 1kg and 4kg have same kinetic energy at a time. What is the ratio of their velocities at this time?

Relevant Equations

$$\frac{1}{2}mv^2$$

I was able to derive,
$1/2*1*v_1^2 = 1/2*4*v_2^2 \\ v_1=2v_2$
But I am confused whether the ratio is 1:2(Looking at the coefficient) or 2:1

 

[BvU]

V1 is twice V2, so the ratio is 2:1
if you want to be unambiguous, say: the 1 kg mass speed is twice as high as that of the 4kg mass