48:18 Tony invested $5,500 in a four-year CD that paid 4.8% interest, but later needed to withdraw $475 early. If the CD’s penalty for early withdrawal was three months’ worth of interest on the amount withdrawn, how much of a penalty did Tony pay?
So do you know what the formula is?
Using the formula, you have to plug in the numbers, then do the math.
Ok as we can see it already states "Tony invested $5,500", "paid 4.8% interest" " needed to withdraw $475" "penalty for early withdrawal was three months" Lets solve for the " "paid 4.8% interest" with the " needed to withdraw $475" first. \[4.8\div100=0.048\] Multiply the paid interest by the needed withdraw fee. \[0.048\times475=22.8\] (22.8) can also be written as (22.80) \[3\div12=0.25\] Multiply the "penalty for early withdrawal was three months" which is now (0.25) by the already multiplied "paid interest and needed withdraw fee." which is (22.80). \[0.25\times22.80=5.7\] (5.7) can also be written as (5.70) Tony paid a 5.70 penalty.
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