5.20 x 102 kg m-3
1.13 x 103 kg m-3
8.80 x 102 kg m-3
5.20 x 102 kg m-3
Correct answer is D
\(V_T = 5m^3, m_1 = 2 \times 1 \times 10^3 = 2 \times 10^3\)
\(M_2 = 3 \times 8 \times 10^3 = 24 \times 10^3\)
MT = 26 x 103
D = \(\frac{m}{v} = \frac{26 \times 10^3}{5} = 5.2 \times 10^3\)