📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!

  • google app store apple app store
  • ✖

      Question

      If the sum of two numbers is cubed and equals 3375, and

      their product is 150, what is the positive difference between their individual cubes?
      A 775 Correct Answer Incorrect Answer
      B 875 Correct Answer Incorrect Answer
      C 650 Correct Answer Incorrect Answer
      D 665 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ;
      Let the numbers be A and B.

      Product of numbers AB = 150... (1)

      And (A + B)³ = 3375 = 15³

      So, A + B = 15... (2) From equation (1) and (2),

      A = 10 and B = 5 Therefore, A³ - B³ = 10³ - 5³ = 1000 - 125 = 875

      Practice Next
      ask-question