Chapter 3.1, Problem 40E

To determine

To calculate: The date for selling apple stock that will give the largest monthly return on simple interest basis and the amount of return for the apple stock bought in May, and it was later sold on one of the marked dates on the table.

$\text{Jan}\text{. 10}$	$\text{Feb}\text{. 10}$	$\text{Mar}\text{. 10}$	$\text{Apr}\text{. 10}$	$\text{May 10}$	$\text{June 10}$
$211.98$	$195.46$	$218.95$	$235.97$	$235.86$	$255.96$
$\text{Jul}\text{. 10}$	$\text{Aug}\text{. 10}$	$\text{Sep}\text{. 10}$	$\text{Oct}\text{. 10}$	$\text{Nov}\text{. 10}$	$\text{Dec}\text{. 10}$
$246.94$	$260.09$	$258.77$	$294.07$	$317.13$	$317.44$