Question

3. 20 cubical tin boxes each with edge 12 cm are to be made. Find the cost of the tin sheet required at the rate of 130 per m​

Answer 1

Answer:

224 rs

Step-by-step explanation:

given that

20 cubical boxes to be made

edge length of each cube =12cm

curved surface area of cube =6a^2

=6(12)^2

=6×144

=864cm^2

cost of sheet for 1 m=130

for 20 boxes area is =864×20

=17280cm^2

cost for complete task=(17280/100×100)×130

=224 rs

hope you understand this solution

Answer 2

the cost of the tin sheet required at the rate of 139 per m is 224 ruppees