In a store, the total price for 25 shirts is $400 and the total price for 75 sweaters is $1500. By how much does the average (arithmetic mean) price of a sweater exceed that of a shirt in this store?  Choose one:
A) $1	B) $2	C) $3	D) $4	E) $5
The average price of a shirt is: $400 / 25= 
<gadget id="calculator">400 / 25</gadget>
<output>16</output>
$16.   The average price of a sweater is: $1500 / 75= 
<gadget id="calculator">1500 / 75</gadget>
<output>20</output>
$20.   The difference in price is: $20 - $16 = $4.   The answer is $4.  20 -  16= 
<gadget id="calculator">  20 -  16</gadget>
<output>4</output>
$4.   The answer is $4.
<result>D</result>
In a store, the total price for 25 shirts is $400 and the total price for 75 sweaters is $1500. By how much does the average (arithmetic mean) price of a sweater exceed that of a shirt in this store?