Extracted text: Figure Q1 shows two parallel strip footings 3m wide and 5m apart (measured from centre to centre), which transmit a compressive pressure of 200kN/m² and 100KN/m respectively. Determine the increment of total vertical stress at points A and B, located 3m below the ground. 1. q=200 kPa q=100 kPa 3;m 3.m 5 m 3 m A+ B+ Figure Q1