Problem 4 IC engine, mean piston speed, brake mean effective pressure, volumetric efficiency

A four stroke, four cylinder engine running at 2000 rpm develops 60 kW. brake thermal efficiency =30% Calorific value of fuel= 42 MJ/kg bore diameter =120 mm stroke= 100 mm density of air = 1.15 kg/m^3 air-fuel ratio =15:1 mechanical efficiency =0.8 Calculate fuel consumption (kg/s); air consumption (m^3/s) ; indicated thermal efficiency; volumetric efficiency; brake mean effective pressure; mean piston speed Please refer my following Playlists , Links are given: 1. Theory of Machines or Kinematics of Machines play list    • Theory Of Machines playlist   2. Fluid mechanics and Hydraulic machines playlist    • Fluid mechanics and hydraulic machines   3. Refrigeration and air conditioning playlist    • Refrigeration and air conditioning   4. Renewable Energy engineering or Non-convensional energy sources play list    • Renewable energy engineering/ Non-conventi...   5. Dynamics of Machinery play list    • Dynamics of machinery / Mechanical Vibrati...   6. Engineering graphics or Engineering drawing play list    • Engineering Graphics Playlist   7. Engineering Mechanics Playlist    • Engineering Mechanics Playlist   8. Power plant engineering play list    • Power Plant Engineering( Mechanical Branch...   9. Engineering Thermodynamics play list    • Thermodynamics / Thermal Engineering   Pla...   10. Heat and mass transfer play list    • Heat and Mass Transfer Playlist   11. Operation research play list    • Operation Research Playlist   12. Strength of material playlist    • Strength Of Materials Play list   13. Control Engineering/ Control systems engineering playlist    • Control Systems playlist ( EnTC & Mechanic...