A closed aquarium of dimensions 30 m × 25 cm × 20 cm is made up entirely of gl

Question

A closed aquarium of dimensions 30 m × 25 cm × 20 cm is made up entirely of glass plates held together with tapes. The total length of tape required to hold the plates together (ignore the overlapping tapes) is :

Options:

A . 75 cm

B . 120 cm

C . 150 cm

D . 300 cm

Answer: Option D
Total length of tape required :
= Sum of lengths of edges
= (30 × 4 + 25 × 4 + 20 × 4) cm
= 300 cm

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