7:21 A layered soil is shown in Figure 7.33. Given: • H₁ = 1.5 m k₁ = 9 × 10-4 cm/sec 0 H₂ = 2.5 m k₂ = 7.8 × 10-3 cm/sec ° H₁ = 3.5 m k3 = 4.5 × 10-5 cm/sec Estimate the ratio of equivalent permeability, KH(eq)/kv(eq). H2 H3 Figure 7.33