Question

find the cost of painting a cuboid of dimensions 20cm*15cm*12cm at the rate of 5 paisa per square centimeter.

Answer 1

$<marquee> ❄️❤️❇️ Hello friend ❇️❤️❄️ </marquee>$



$solution$


$given -$

$length \: of \: the \: cuboid = 20 \: cm$

$breadth \: of \: the \: cuboid = 15 \: cm$

$height \: of \: the \: cuboid = 12 \: cm$



$volume \: of \: the \: cuboid = l \times b \times h$

$= 20 \: cm \: \times \: 15 \: cm \: \times \: 12 \: cm$

$= 3600 \: {cm}^{3}.$




$cost \: of \: painting = 5 \: paise \: {cm}^{2} \:$

$1 \: paisa \: = \: rs \: 1$

$5 \: paise \: = \: rs \: \frac{1}{5}.$


$= \frac{1}{5} \times \: 3600$

$= 720 \: rs.$


$cost \: of \: the \: painting \: = \: rs \: 720.$





$hope \: you \: like \: my \: answer$




$<marquee> ❤️❤️❤️❤️❤️ Thanks for your question ❤️❤️❤️❤️❤️ </marquee>$