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1. he ratio of two numbers is 3:4 and their LCM is 84, find the number-

  • A. 28
  • B. 28
  • C. 28
  • D. 28

Answer: Option A

Explanation:

মনেকরি,
সংখ্যাদ্বয় 3x ও 4x
.:. ল.সা.গু = 12x
প্রশ্নমতে, 12x = 84
⇒ x = 7
.:. সংখ্যাদয় (3 x7) = 21
এবং (4 x 7) = 28

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