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. You deposit $4,000 in a savings account that earns 7% simple interest per year. What is the minimum number of years you must wait to double your balance? Now suppose you deposit the same amount in another savings account that earns 6% compounded yearly. How many years will it now take to double your balance?

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. Suppose that you are obtaining a personal loan from your uncle in the amount of $18,000 (presently) to be repaid in two years. If your uncle earns 5% interest (annually) on his money, which minimum lump-sum payment two years from now would make your uncle happy?

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. Suppose you have the alternative of receiving either $10,000 at the end of five years or P dollars today. Currently you have no need for money, so you would deposit the P dollars in a bank that pays 8% interest. What value of P would make you indifferent in your choice between P dollars today and the promise of $10,000 at the end of 5 years?

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. How many years will it take an investment to triple if the interest rate is 7% compounded (a) quarterly and (b) continuously?

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. A dealer will sell goods to his regular customers for $15 immediately or $18 if the payment is deferred one week. What annual nominal interest rate is the dealer receiving?

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. You hope to make a single deposit today that will earn interest at 8% and that will grow to $20,000 in 10 years. How much should you deposit?

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. Suppose Apple's share price has double during the last six years. At what annual rate has it been growing?

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. Mr. Bean is able to save $5,000 per year. What interest rate should be earned to accumulate $50,000 in 15 years from now?

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. Landtech Ltd bought a piece of land for $200,000 ten years ago. The company has just sold it for $1,500,000. What rate of return did the firm make?

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. How much would you be willing to pay for a $1,000 par value, 5% coupon bond with 10 years to maturity given your required rate of return is 8%?

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