Q46
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 :
A.
75 cm
B.
120 cm
C.
150 cm
D.
300 cm
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
Total length of tape required := Sum of lengths of edges
= (30 × 4 + 25 × 4 + 20 × 4) cm
= 300 cm