A metallic sheet is of rectangular shape with dimensions 50 m x 30 m. From each of its corners, a square is cut off so as to make an open box. If the length of the square is 5 m, the volume of the box (in m cube) is: Choices.
A) 4120 m cube  B) 4140 m cube  C) 5140 m cube  D) 5120 m cube  E) None of these
Explanation:   l = (50 - 10)= 
<gadget id="calculator">(50 - 10)</gadget>
<output>40</output>
40 m, [because  5+5= 
<gadget id="calculator"> 5+5</gadget>
<output>10</output>
10]   b= (30 -10)= 
<gadget id="calculator">(30 -10)</gadget>
<output>20</output>
20 m,   h= 5 m.   Volume of the box = (40 x 20 x 5) m cube   = 4000 m cube.   Option None of these
<result>E</result>
A metallic sheet is of rectangular shape with dimensions 50 m x 30 m. From each of its corners, a square is cut off so as to make an open box. If the length of the square is 5 m, the volume of the box (in m cube) is: