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SEAMO 2020 — Paper D — Grade 7–8 Question 12

SEAMO · SEAMO 2020 — Paper D — Grade 7–8

Question 12

Positive reals a,b satisfy $1/a+1/b=5/(a-b)$. Evaluate $(a/b+b/a)^2$.
  1. $29$
  2. $16\sqrt5$
  3. $25\sqrt2$
  4. $36$
  5. None of the above