A body travels with a velocity ${ v }*{ 1 }$ for time
${ t }*{1 }$ and with a velocity

${ v }

*{ 2 }$ for time*

${ t }{ 2 }$, find the average velocity of the body for the total time.

${ t }

*{ 1 }$ for time
${ t }*{1 }$ and with a velocity

${ v }

${ t }