The displacement time graph of two particles P & Q is as shown in figure. What is ratio of velocities of ‘P’ and ‘Q’?

Slope of S−t graph gives velocity velocity=change in displacementtime taken for the change=∆S∆t=tan∅ Velocity P is VP=Tan⁡30∘ Velocity of Q is VQ=T an 45∘VPVQ=Tan⁡30∘Tan⁡45∘=131=13