https://preparationpoint.info/solved-past-papers-mcqs/ppsc-past-papers/ppsc-past-papers-2018/model-paper-64-excise-taxation-inspector-bs-16-18j-19j-20j-2018/mr-akram-borrowed-500-from-the-bank-for-a-period-of-4-years-if-the-interest-rate-is-11-per-annum-what-would-the-amount-of-interest-he-has-to-pay-back-in-addition-to-the-principal-amount/