Identical cubes of largest possible size are cut from a soli

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SSC CGL Tier-2 19-February-2018 Maths
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MATH

46

M: +3.00/-0.00

Identical cubes of largest possible size are cut from a solid cuboid of size 65cm×26cm×3.9cm. What is the total surface area (in cm2) of all the small cubes taken together?

[SSC CGL Tier-2 19-February-2018 Maths]

A 30420

B 15210

C 20280

D 16440