45 CHAMFER ALL EDGES 4 HOLES p5 100 SolutionAs we know that

Solution

As we know that

Density = Mass / Volume

Now Volume = 50 x 100 x 5 mm³ = 25000 mm³ = 25 cm³

Mass = 2.7 x 25 = 67.5 gram

Since there are 4 holes in it the quantity of material removed will be substracted.

Hence the exact mass = 67.5 - 4x

where x is the mass of quantity of metal removed for making one hole.