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

  • google app store apple app store
  • ✖

      Question

      The product of the two numbers is 1500 and their HCF is

      10. The number of such possible pairs is/are:
      A 1 Correct Answer Incorrect Answer
      B 3 Correct Answer Incorrect Answer
      C 4 Correct Answer Incorrect Answer
      D 2 Correct Answer Incorrect Answer

      Solution

      Let two numbers be 10x and 10y where, x and y are two co-prime to each other  According to the question, we have Product of two numbers = 1500 ⇒ (10x) × (10y) = 1500 ⇒ xy = 1500/100 ⇒ xy = 15 No. of possible pairs which are co-prime to each other is  ⇒ (15 × 1), (5 × 3) ∴ The number of possible pairs is 2.

      Practice Next
      ask-question