A recent college graduate buys a new car by borrowing RM18000 at 8.4% compounded monthly, for 5 years. She decides to pay an extra RM15 per payment.

From age 30 to age 45, Cik. Siti deposited RM 350 at the end of each month into a retirement account. She made no withdrawals or further contributions until age 55. En. Ali made deposits of RM 500 into his retirement account from age 45 to age 60. If both account earned interest at the rate of 4 percent per year compounded monthly, who ends up with a bigger nest egg upon reaching the age of 60.