WN1 : Calculation of Interest on capital
On Jain's Capital = 4,00,000×10100=Rs40,000
On Gupta's Capital = 6,00,000×10100=Rs60,000
On Singh's Capital = 10,00,000×10100=Rs1,00,000
Total Interest = 40,000+60,000+1,00,000=Rs2,00,000
WN2 : Calculation of Proportionate Interest on capital
Proportionate Interest = InteresttoapartnerTotalInterestofallpartners×Availableprofits
Proportionate Interest to Jain = 40,0002,00,000×1,47,000=Rs29,400
Proportionate Interest to Gupta = 60,0002,00,000×1,47,000=Rs44,100
Proportionate Interest to Singh = 1,00,0002,00,000×1,47,000=Rs73,500.