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IKMC 2019 - Grades 11-12 - Self-study Question 12

IKMC · IKMC 2019 - Grades 11-12 - Self-study

Question 12

In this school year the number of boys in my class has increased by 20% compared to the previous year and the number of girls has decreased by 20%. There is now one person more than before in this class. Which of the following numbers could be the current number of students in my class?
  1. 22
  2. 26
  3. 29
  4. 31
  5. 34