65 small identical cubes are used to form a large cube. How many more cubes are needed to add one top layer of small cube all over the surface of the large cube ?  Choose the correct choice from the following choices:	A) 64	B) 128	C) 151	D) 216	E) 256
65 small cube will make a large cube with 4 cubes in each line i.e.   Adding one layer will require one cube at each end and hence new cube will have 6 cubes in each line.   Total number of small cubes in new cube = 6^3 = 216   Extra cube required = 216 - 65= 
<gadget id="calculator">216 - 65</gadget>
<output>151</output>
151   Hence, 151 is the answer.
<result>C</result>
65 small identical cubes are used to form a large cube. How many more cubes are needed to add one top layer of small cube all over the surface of the large cube ?