In a constant head permeability test, the quantity of water collected is 380 ml in 12 minutes under an effective constant head of 45 cm. If the length and area of cross section of the sample are 6.5 cm and 50 cm2 respectively, then coefficient of permeability is ________.
1
1.52 × 10-3 cm/sec
2
1.84 × 10-5 cm/sec
3
1.10 × 10-2 cm/sec
4
1.24 × 10-4 cm/sec