Question

8 CLASS ICSE MATHS QUESTION

tin boxes each of size 45 cm into 30 cm into 30 cm are required to pack biscuits. Calculate the area of tin sheets required to make 25 such boxes .

Answer 1

Answer:

180000 cm²

Step-by-step explanation:

Given, Length of tin box = 45 cm.

Given, Breadth of tin box = 30 cm

Given, Height of tin box = 30 cm.

We know that Total surface area of the tin sheet = 2(lh + bh + lb)

= 2(45 * 30 + 30 * 30 + 45 * 30)

= 2(3600)

= 7200.

Therefore, Area of the sheet required to make 25 boxes

⇒ 25 * 7200

⇒ 180000 cm²

Hope it helps!

Answer 2

If the ...
Dimension of cuboidal tin = 30cm×40cm×50cm ...
TSA of 20 tin boxes = 9400×20 = 18800 cm²
= 1.88m²