A cubical block of metal has dimensions of metal has dimensions 36cm by 32cm by 0.25m it is meled and recast into cubes with an edge of 4 cm 1-how many such cubes can be made 2- what is the cost of silver coating the surface of the cube at the rate of rs. 0.75 per square centimeters
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Step-by-step explanation:
before melt volume of cube is = 36x32x25
=28800Cm³
after melt volume of cube of dimension 4cm = 4x4x4
=64cm³
1) total number of cubes = 28800/64
=450 cubs
2) cost of silver
area of cube =(4x4)x6=96cm²
cost per block = 96 x 0.75 = 72 rupees per block
total cost of blocks = 72 x 450 = 32400 rupees
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