A Column of Oil of Height 70

Multiple Choice

A column of oil of height 70.0 cm supports a column of an unknown liquid as suggested in the figure (not drawn to scale) . Assume that both liquids are at rest and that the density of the oil is 840 kg/m³. Determine the density of the unknown liquid.

A) 3.2 × 10² kg/m³
B) 2.2 × 10³ kg/m³
C) 2.6 × 10³ kg/m³
D) 3.6 × 10³ kg/m³
E) 4.9 × 10³ kg/m³