In Sam's hanger there are 23 boxes, 16 out of the boxes are filled with toys and the rest are filled with electrical appliances. 8 boxes are for sale, 4 of them are filled with toys. How many boxes with electrical appliances are in Sam's hanger that is not for sale?
Choices:
A) 1.
B) 2.
C) 3.
D) 4.
E) 5.
Total boxes = 23   Filled with toys = 16   Filled with appliance = 7   Total boxes for sale = 8   Toy boxes for sale = 4   Appliance boxes for sale = 4   Appliance boxes not for sale = 7 - 4= 
<gadget id="calculator">7 - 4</gadget>
<output>3</output>
3   3.orrect Option: 3.
<result>C</result>
In Sam's hanger there are 23 boxes, 16 out of the boxes are filled with toys and the rest are filled with electrical appliances. 8 boxes are for sale, 4 of them are filled with toys. How many boxes with electrical appliances are in Sam's hanger that is not for sale?