What is the difference between the amounts obtained by investing $1000 at 8% per

Practice Questions

Q1
What is the difference between the amounts obtained by investing $1000 at 8% per annum for 2 years in simple interest and compound interest?
  1. $16
  2. $24
  3. $32
  4. $40

Questions & Step-by-Step Solutions

What is the difference between the amounts obtained by investing $1000 at 8% per annum for 2 years in simple interest and compound interest?
  • Step 1: Understand the two types of interest: Simple Interest (SI) and Compound Interest (CI).
  • Step 2: Calculate Simple Interest using the formula: SI = Principal * Rate * Time.
  • Step 3: Substitute the values into the formula for SI: SI = 1000 * 8/100 * 2.
  • Step 4: Calculate SI: SI = 1000 * 0.08 * 2 = 160.
  • Step 5: Calculate Compound Interest using the formula: CI = Principal * (1 + Rate) ^ Time.
  • Step 6: Substitute the values into the formula for CI: CI = 1000 * (1 + 0.08) ^ 2.
  • Step 7: Calculate (1 + 0.08) ^ 2: (1.08) ^ 2 = 1.1664.
  • Step 8: Now calculate CI: CI = 1000 * 1.1664 = 1166.4.
  • Step 9: Find the difference between CI and SI: Difference = CI - SI.
  • Step 10: Substitute the values: Difference = 1166.4 - 160.
  • Step 11: Calculate the difference: Difference = 1006.4.
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