what is the Max number of rectangular boxes, each measuring 5 inches by 2 inches by 7 inches, that can be packed into a rectangular packing box measuring 15 inches by 20 inches by 35 inches, if all boxes are aligned in the same direction?
Choose the correct answer:
A) 200
B) 350
C) 100
D) 150
E) 120
The 5 inch side should be aligned to the 15 inch side ( 3 layer)   2 inch side should be aligned to the 20 inch side. (10 layer)   7 inch side should be aligned to the 35 inch side.(5 layer)   Maximum number of rectangles =3*10*5= 
<gadget id="calculator">3*10*5</gadget>
<output>150</output>
150   Answer is 150
<result>D</result>
what is the Max number of rectangular boxes, each measuring 5 inches by 2 inches by 7 inches, that can be packed into a rectangular packing box measuring 15 inches by 20 inches by 35 inches, if all boxes are aligned in the same direction?