A closed aquarium of dimensions 30 cm × 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

• ক 150 cm
• খ 375 cm
• গ 75 cm
• ঘ 300 cm ✅ সঠিক উত্তর