Question

20 cubical boxes each with edge 12 cmare to be made.find the cost of tin sheet required at rate of Rs 130 per m2​

Answer 1

Given:1)edge of cubical box=12cm=0.12m.

Solution:

TSA of 1 Cubical box=6×0.12×0.12=0.0864m^2.

∴TSA of 20 Cubical box=20×0.0864=1.728m^2.

∴Cost of tin sheet=1.728×130=₹224.64.Answer.

Answer 2

The cost of tin sheet required is Rs.112320.

Step-by-step explanation:

Given : 20 cubical boxes each with edge 12 meter to be made.

To find : The cost of tin sheet required at rate of Rs.130 per m²?

Solution :

A cubical edge is 12 meter.

The surface area of the cube is $SA=6a^2$

$SA=6(12)^2$

$SA=6\times 144$

$SA=864\ m^2$

The cost of tin sheet required at rate of Rs.130 per m² is given by,

$C=864\times 130$

$C=Rs.112320$

Therefore, the cost of tin sheet required is Rs.112320.

#Learn more

Each edge of a cubical box is 12 CM the edge of cuboidal box are 15 cm into 12 cm into 8 cm which of the two boxes has more volume?by how much?

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