$\rho=\frac{6}{\pi} M D ^{-3}$

taking log

$\ell n \rho=\ell n \left(\frac{6}{\pi}\right)+\ell n M -3 \ell m D$

Differentiates

$\frac{ d p}{\rho}=0+\frac{ d M }{ M }-3 \frac{ d ( D )}{ D }$

for maximum error

$100 \times \frac{ d \rho}{\rho}=\frac{ dM }{ M } \times 100+\frac{3 d D }{ D } \times 100$

$=6+3 \times 1.5$

$=10.5 \%$

$=\frac{1050}{100} \%$

$x=1050.00$