A, B and C started a firam on 1st October , 2018 sharng profits equally .A drew regularly Rs. 4,000 in the beginning of every month of the six months ended 31 st March ,019 B drew regularly Rs. 4,000 at the end of every month for the six months ended 31 st March 2019 C drew regularly Rs. 4,000 in the middle of every months for the six months ended 31st March ,2019
Calculate interest in drawing @5% p.a for the period ended 31st MArch , 2019.