Age frequencies with two unknowns

Age frequencies with two unknowns

Secondary 2
3 marks
TGM Original Questions

Core stretch

The ages 13, 14, 15, 16 occur with frequencies 3, \(x\), \(y\), 4, for 20 students.

  1. Given that 15 is the unique mode, write an inequality involving \(x\) and \(y\).[1]
  2. If 40% of the students are aged 15, find \(x\) and \(y\).[2]

Solution:

Solution locked

Sign in to view the step-by-step solution

Please join our E Math programme to search for similar questions for more practice.

E Math Tuition
Answer:(a) \(y>x\text{ and}\hspace{0.5em}y>4\) (b) \(x=5,y=8\).

Need help? Join our JC Math tuition classes.

Learn more