Lines of force are moving outwards from q₂, hence q₂ is positively charged: +q₂. Lines of force are going into q₁, hence q₁ is negatively charged : -q₁.
From the diagram, 18 lines of electric field come out of q₂ and 6 lines of electric field get into q₁.
Ratio of
Hence, If the lines are drawn in proportion to the charge then q₁:q₂= 1:3