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SEAMO 2017 — Paper D — Grade 7–8 Question 23

SEAMO · SEAMO 2017 — Paper D — Grade 7–8

Question 23

Positive real numbers $a\lt b\lt c$ are equally spaced. $ab=85$, $bc=115$. Find $2012a-1006c$.
  1. $3355$
  2. $4433$
  3. $5533$
  4. $3344$
  5. $5454$