The ratio of the clearance volume to the displacement volume of a R12 reciprocating compressor is 0.05 Specific volume at inlet and outlet of compressor are 0.04 and 0.02 m3/kg respectively. Volumetric efficiency of the compressor is
(a) 95.0% (b) 47.5%
(c) 38.0% (d) 19.0%