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JAMB Mathematics 2015 Objective — Question 50

Question 50 of 50 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2015 Objective paper, with the correct answer and a full explanation.

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If some strips of sticks of lengths 7cm, 9cm and 27cm were cut independently from a single stem without a remainder, find the shortest possible length of that stem.

  • A. 197cm
  • B. 54cm
  • C. 81cm
  • D. 189cmCorrect

Explanation

The shortest stem length is the LCM of 7, 9 and 27, which is 189cm.

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