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TIMO 2021 - Senior Secondary (Grades 10-12) - Preliminary Round - Paper 1 Question 10

TIMO · TIMO 2021 - Senior Secondary (Grades 10-12) - Preliminary Round - Paper 1

Question 10

How many integers $x$ satisfy $54\le x^2-3x\le180$?
  1. 28
  2. 27
  3. 14
  4. 12