interest on Rs. 3,42,000 @ 5% p.a for one month `= Rs.3,42,000xx(5)/(100)xx(1)/(12)=Rs. 1,425`.
alternatively interest may be calculated for 9.5 months [(12 months +7 months )/2] @ 5% p.a on Rs`. 36,000 xx(5)/(100)xx(9.5)/(12)=Rs.1,425`
interest On Rs. 3,06,000@ 5% p.a for one month = Rs. 1,275.
alternatively interest may be calculated for 8.5 months [(months+6 months )2] @5% p.a On` Rs. 36,000 =Rs. 36.000xx(5)/(100)xx(8.5)/(12)=Rs. 1,275.`
interest on Rs. 3,24,000 @ 5% p.a for 1 month =Rs. 1,350
alternatvely , interest may be calculated for 9 months [(11.5 months +6.5 months )/2]` @5% p.a on Rs. 36,000 =Rs. 36,000xx(5)/(100)xx(9)/(12)=Rs. 1,350.`
Situation 4. amount is withdrawn in the begining of each quarter during the year, interest is charged on the whole amount for a period of `7^((1)/(2))` months *.
interest on drawings = `("total Drawings "xx"Rate of interest ")/(100)xx(7^((1)/(2))/(12)`
* Average period `=("12 months +3months ")/(2) =("15 months ")/(2)=7^((1)/(2))`months .
situation 5. if fixed amount is withdrawn at the middle of each quarter duing the year . interest is charged on the whole amount for a period of 6 months *.
interest on drawings `=("Total Drawings "xx"Rate of interest ")/(100)xx(6)/(12)`
* Average period `=(10.5 months +1.5Months )/(2)=(12 months )/(2)=6` months .
situatio 6. of fixed amount is withdrawing at the end quarter the year , interest is charged on the whole amount for a period of `(4^(1/2))` months *
* average period `=("9 months +0 Months ")/(2)=("9 months ")/(2) =4^(1/2)` months .
