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The HCF and LCM of two numbers are 13 and 455 respectively. If one of the number lies between 75 and 125, then, that number is :
  • a)
    91
  • b)
    78
  • c)
    117
  • d)
    104
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
The HCF and LCM of two numbers are 13 and 455 respectively. If one of ...
HCF = 13
Let the numbers be 13x and 13y.
Where x and y are co-prime.
∴ LCM = 13 xy
∴ 13 xy = 455

∴ Numbers are 13 × 5 = 65 and 13 × 7 = 91
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