Paper 1 · Density
A red powder of volume 25 and density 0.200 and a green powder of volume 40 and density 0.125 were mixed to form a yellow powder. What is the average density of the yellow powder?
A0.005
B0.154
C0.163
D0.325
ZIMSEC Physics 5055/1 Paper 1, November 2017, Q3

