Question

how much does it cost to paint a cubical wooden box of 2 metre length one metre weight and one metre height at the rate of rupees 40 metre square​

Answer 1

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given that

length=2m

we know that cubic all side are equal

so

total surface area of cubical is 6a^2

where a=length of the side

so here

6(2)^2=24m^2

per metre the cost of painting is 40 rupees

so

for total surface area

24×40=960 rupees

the cost of painting for whole cubical wooden

$\huge \color{blue}{hope \: it \: helps \: u}$