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The soild brick shown is made of small breaks of side 1. When the large break is is disassembled into its component small bricks, the total surface area of all the small bricks is how much greater than the surface area of the large brick?

A. 32

B. 40

C. 60

D. 72

E. 80

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সঠিক উত্তরঃ B. 40

Explanation:

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৪ জন পুরুষ ৬ জন বালকের সমান কাজ করতে পারে। কতজন পুরুষ ২৪ জন বালকের সমান কাজ করতে পারবে?
১ ঘনমিটার এম. এস. রডের ওজন কত কেজি?

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The soild brick shown is made of small breaks of side 1. When the large break is is disassembled into its component small bricks, the total surface area of all the small bricks is how much greater than the surface area of the large brick?