A) \[420\,\,c{{m}^{2}}\]
B) \[275\,\,c{{m}^{2}}\]
C) \[351\,\,c{{m}^{2}}\]
D) \[378\,\,c{{m}^{2}}\]
Correct Answer: C
Solution :
[c] Let length, breadth and height of parallelepiped be I, b and h respectively. \[x=102-\,100=2\] \[{{(l+b+h)}^{2}}-2\,\,(lb+hb+lh)=225\] \[{{(24)}^{2}}-225=2\,\,(lb+bh+hl)\] \[351=2\,\,(lb+bh+hl)\] Total surface area is 351 cm2.
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