If a person invests $800 at a simple interest rate of 7% per annum, how much int

Practice Questions

Q1
If a person invests $800 at a simple interest rate of 7% per annum, how much interest will he earn in 2 years?
  1. $100
  2. $112
  3. $120
  4. $140

Questions & Step-by-Step Solutions

If a person invests $800 at a simple interest rate of 7% per annum, how much interest will he earn in 2 years?
  • Step 1: Identify the principal amount (the initial investment). In this case, it is $800.
  • Step 2: Identify the interest rate. Here, it is 7% per annum.
  • Step 3: Identify the time period for the investment. In this case, it is 2 years.
  • Step 4: Use the simple interest formula: Simple Interest = (Principal * Rate * Time) / 100.
  • Step 5: Plug in the values: Simple Interest = (800 * 7 * 2) / 100.
  • Step 6: Calculate the multiplication: 800 * 7 = 5600, then 5600 * 2 = 11200.
  • Step 7: Divide by 100 to find the interest: 11200 / 100 = 112.
  • Step 8: The total interest earned in 2 years is $112.
  • Simple Interest – The calculation of interest earned on a principal amount over a specific period at a fixed rate.
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