if 160 litres 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 1cm?
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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
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