Word Problem Exercises: Solving Exponential Growth and Decay Questions Using Logarithms

General Questions
 The population in the town of Huntersville is presently 38,300. The town grows at an annual rate of 1.2%. Find the number of years it takes for the population to grow to 42,500.
 1

 The population in the town of Deersburgh is presently 42,500. The town has been growing at a steady rate of 2.7%. Find the number of years ago that the population was 30,000.
 2

 \$1,200 is invested at an annual rate of 3.2%. Find the number of years it will take for the account balance to be \$1,480.
 3

 The value of a stock when purchased was \$10 a share. The stock grew at a monthly rate of 7%. Find the number of months it took to reach a value of \$15.75 a share.
 4

 The value of a stock when purchased is \$10 a share. The stock decreased at a rate of 3% daily. Find the number of days it took for the stock to be worth \$7.40.
 5

C Gulliksen
K Holland

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