The viscousity of an oil of specific gravity 0.82 is measured by capillary tube of diameter 47 mm. The difference of pressure head between two points 1.9 m apart is 0.48 m of water. The mass of oil collected in a measuring tank is 58 kg in 105 seconds. Find the viscousity of the oil.

The viscousity of an oil of specific gravity 0.84 is measured by capillary tube of diameter 51 mm. The difference of pressure head between two points 2 m apart is 0.47 m of water. The mass of oil collected in a measuring tank is 58 kg in 101 seconds. Find the viscousity of the oil.