Question

PLEASE SOLVE QUESTION NO. 6.

Answer 1

In this question,

Length = 60 cm = 0.60 m
Breadth = 45 cm = 0.45 m
Height = 30 cm = 0.30 m

Now,

$= > surface \: area = 2 (lb + bh + hl)$

=> T.S.A = 2(0.60x0.45+0.45x0.30+0.30x0.60) m^2

=> T.S.A = 2(0.270+0.135+0.180) m^3

=> T.S.A = 2(0.585) m^2

=> T.S.A = 1.17 m^2

Now, T.S.A of 8 Cuboid = 8 x 1.17 m^2 = 9.36 m^2

Again,

Cost of paintings = Rs [200 x 9.36]

=> Cost of Painting = Rs 1872

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Answer 2

Answer:

Rs 1872

Step-by-step explanation:

Refer to the attachment ^_^

Hope that helps :)