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The density of a material in the shape of a cube is determined by measuring three sides of the cube and its mass

The density of a material in the shape of a cube is determined by measuring three sides of the cube and its mass. If the relative errors in measuring the mass and length are respectively 1.5% and 1%, the maximum error in determining the density is : a) 6% b) 2.5% c) 3.5% d) 4.5%
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density = mass/volume

volume=l^3 if side is l

$\frac{\Delta d}{d}=\frac{\Delta M}{M}+3\frac{\Delta l}{l}$

=1.5+3=4.5%

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