Question

If 160 L of molten metal is cast into 20 identical cubes, how many litres of paint will be required to paint all the cubes completely with a uniform thickness of  1 cm?​

Answer 1

Answer:

480 will be the answer

Step-by-step explanation:

160L÷20=8

therefore, volume of 1 cube = 8 cubic unit

hence side of cube is 2 units

area of one side of cube = 2×2 = 4 unitsquare

area of all sides of cube to be covered in paint = 4×6 = 24 unitsquare

No of cubes = 20

Total Area to be painted is 24×20 = 480

Hence, 480 cubic unit