Time left $3$:$48$:$21$

Another separate bank is offering them two options i$.$e$.,$ to increase the payback period to $29$ years or to reduce the rate by $1\mathrm{.}5\%$ p$.$a$.$

$($c$)($i$)$ What will be the total amount is expected to be received by the bank after increasing the number of years of repayment? NS

$($ii$)$ What will be the total interest amount to be paid in this case? N$

$($iii$)$ What will be the total principal amount to be paid in this case? N$

$($iv$)$ What is the monthly installment to be paid by the couple in this case? NS