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WAEC Mathematics 2016 Question 14

Question 14

Algebraic Expressions

Make s the subject of the relation: p = s + sm2/nr

  1. A.s = mrp/(nr + m2)
  2. B.s = (nr + m2)/nrp
  3. C.s = nrp/(mr + m2)
  4. D.s = nrp/(nr + m2)
Show the answer and explanation

Answer: D (s = nrp/(nr + m2))

Explanation

p = s(nr + m²)/nr, so s = nrp/(nr + m²).