A closed aquarium of dimensions 30 cm × 25 cm × 20 cm is made up entirely of glass plates held together with… · ABC26GN4785
Subject: General Aptitude · Chapter: Volume and Surface Area · Exam: Hotel Management 2009
A closed aquarium of dimensions 30 cm × 25 cm $\times 20 \mathrm{cm}$ 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
(a)75 cm
(b)120 cm
(c)150 cm
(d)300 cm
Answer
Answer (as printed): D
Explanation
Total length of tape required = Sum of lengths of edges $=(30 \times 4+25 \times 4+20 \times 3) \mathrm{cm}=300 \mathrm{cm}$.