This takes his total interest to 16.91%.
The addition would increase its total interest to 43percentt.
Over three years, its total interest bill would be less than 40 million Singapore dollars.
The total interest payable on these capital commitments is expected to be £39bn which is up £6bn on the previous year.
Standard economic theory suggests that paying back loans based on their interest rates, from highest to lowest, should be preferable since this approach minimizes the total interest paid.
If you made all your repayments on time, you'd receive £2,248.67 in cashback, bringing you total interest bill down from £8,260 to £6,011.33.
The country's interest rates have been slashed: its total interest payments in 2014 were just 2.6% of GDP, according to Zsolt Darvas of Bruegel, a think-tank.
Total interest payments on household debt in Britain fell to 7% of disposable income at the end of last year, the lowest level since 2003.
Based on August 2013 trends - the latest available figures - the UK's total interest repayments on personal debt over a 12-month period would have been £59.8bn.
The society said the total interest paid by a borrower over the term of the mortgage was broadly the same as the amount paid by someone who opted for one of its standard fixed-rate loans.
The second, who is black, borrowed only $14,787 over five years, but she was charged a dealer markup of one percentage point, for a total interest rate of 9.25percentt.
