Question

a cardboard box of length 80 CM breadth 70 cm and height 50 cm is to be made. it is to be open at the top. ignoring the thickness of the sheet calculate the following:

1) area of the cardboard sheet required to make the box.

2) cost of the sheet at the rate of 2 paise per sq.cm.

guys I just need one help from you please do step by step method to understand the method.
please do not give direct answer.
I hope you all understood. ​​

Answer 1

Answer:

$cost \: of \: sheet = 20600 \times 2 \\ = 41200 \: paise \\ \: paise \: into \: rupees = \frac{41200}{100} = 412 \: rupees$

Hope it helps you