Madhya Pradesh Police Exam Model Paper 9

Given:
Side of each cube = 10 cm
Formula:
Total surface area of cuboid $=2\left(\mathit{l}\mathit{b}+\mathit{b}\mathit{h}+\mathit{h}\mathit{l}\right)$
Calculation:
Length of cuboid $=10+10=20$
Breadth of cuboid $=10\mathit{c}\mathit{m}$
Height of cuboid $=10\mathit{c}\mathit{m}$
Total surface area of cuboid $=2\left(20\times 10+10\times 10+10\times 20\right)$
$\Rightarrow 2\times \left(200+100+200\right)$
$\Rightarrow 2\times 500$
$\Rightarrow 1000\mathit{c}{\mathit{m}}^2$