Problems with finding initial velocity of an object

[lGLOVEl]

Homework Statement

In the figure below, what is the minimum initial speed of the dart if it is to hit the monkey before the monkey hits the ground, which is 12.2 m below the initial position of the monkey, if x is 48 m and h = 11 m? (Ignore any effects due to air resistance.)
Use this figure: http://imgur.com/xDVaz
From my calculations I have that it takes 1.6s for the monkey to fall 12.2m.

Homework Equations

x=X0 + V0t + 1/2(a)(t^2)

The Attempt at a Solution

Im stuck :/

 

[lGLOVEl]

http://imgur.com/xDVaz
Here is the figure the question is talking about

 

[vela]

Why wouldn't the dart reach the monkey in time?

 

[azizlwl]

The time for the dart traveled horizontally distance of x = time the dart traveled up distance of h = time travelled by the monkey downward to height of h