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  1. Diagonal of a cube is 63cm. Ratio of its total surface area and volume (numerically) is
    1. 2 : 1
    2. 1 : 6
    3. 1 : 1
    4. 1 : 2
Correct Option: C

Diagonal of the cube = 63cm
∴ 3 × edge = 63cm
⇒ Edge = 6 cm
∴ Total surface area : Volume = 6 × 6² : 6³ = 1 : 1


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