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JAMB Mathematics 2022 Objective — Question 3

Question 3 of 41 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2022 Objective paper, with the correct answer and a full explanation.

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The element common to Alnico, steel and Permalloy is

  • A. Aluminium
  • B. Nickel
  • C. IronCorrect
  • D. Cobalt

Explanation

Alnico = Al + Ni + Co + Fe. Permalloy = Fe + Ni. Steel = Fe + C. Iron (Fe) is the element common to all three alloys.

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