Question 1176186
.
<pre>

Use the formula  t = {{{u/g}}}  from Physics.


Here "u" is initial vertical velocity;

     "g" is the gravity acceleration, 32 ft/s^2.


This formula gives the time to get maximum height.


The same time is needed to fall to the ground from the upper point.


So the entire time is   {{{12/32}}} + {{{12/32}}} = {{{3/8}}} + {{{3/8}}} = {{{6/8}}} = {{{3/4}}} of the second.    <U>ANSWER</U>
</pre>

Solved.