SOLUTION: A cuboidal oil tin is 30 cm by 40 cm by 50 cm. Find the cost of tin required for making 20 such tins if the cost of tin sheet is rs 15 per square metre.

Question 998830: A cuboidal oil tin is 30 cm by 40 cm by 50 cm. Find the cost of tin required for making 20 such tins if the cost of tin sheet is rs 15 per square metre.
Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
Hi there,
I am assuming the length = 50 cm,
the breadth = 30 cm and the height = 40 cm.
Considering the sides and the top and bottom
and the ends.
Sides: 2 x 50 x 40 = 4000cm^2
Top and bottom: 2 x 40 x 30 = 2400 cm^2
Ends: 2 x 30 x 50 = 3000 cm^2
Total = 9,400 cm^2
9,400 cm^2 = 0.94 m^2
0.94 x rs 15 = rs 14.1
rs 14.1 per tin
rs 281 for 20 such tins.
Hope this helps :-)
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