Discussion

Explanation:

i. Volume of parallelepiped = 5 × 4 × 3 = 60 cm3

ii. Volume of cube = 4 × 4 × 4 = 64 cm3

iii. Volume of cylinder = πr2h = π × 3 × 3 × 3 > 81 cm3

iv. Volume of sphere = 4/3 × πr3 = 36π cm3 > 81 cm3

∴ Required order is iv, iii, ii, i.

Hence, option (a).

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