If the sum of two numbers is 20 and their product is 96, what are the two number

Practice Questions

Q1
If the sum of two numbers is 20 and their product is 96, what are the two numbers?
  1. 12 and 8
  2. 10 and 10
  3. 16 and 4
  4. 14 and 6

Questions & Step-by-Step Solutions

If the sum of two numbers is 20 and their product is 96, what are the two numbers?
  • Step 1: Let the two numbers be x and y.
  • Step 2: Write down the equations based on the problem: x + y = 20 (for the sum) and x * y = 96 (for the product).
  • Step 3: From the first equation, express y in terms of x: y = 20 - x.
  • Step 4: Substitute y in the second equation: x * (20 - x) = 96.
  • Step 5: Expand the equation: 20x - x^2 = 96.
  • Step 6: Rearrange the equation to form a standard quadratic equation: x^2 - 20x + 96 = 0.
  • Step 7: Factor the quadratic equation: (x - 12)(x - 8) = 0.
  • Step 8: Solve for x: x = 12 or x = 8.
  • Step 9: Find y using y = 20 - x: If x = 12, then y = 8; if x = 8, then y = 12.
  • Step 10: The two numbers are 12 and 8.
No concepts available.
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely