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The HCF of two numbers is 9 and their LCM is 360. If one of the numbers is 45, what is the other number?

Competition practiceNumber & Arithmetic
  • A79
  • B65
  • C72
  • D144

Step-by-Step Solution

Product of the two numbers = HCF × LCM = . Other number = 3240 ÷ 45 = 72.
Answer: C) 72

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