Frequencies of marks $1, 2, 3, 4, 5$ in a quiz are $4, 6, 8, 5, 2$ respectively. What is the total number of…

Frequencies of marks $1, 2, 3, 4, 5$ in a quiz are $4, 6, 8, 5, 2$ respectively. What is the total number of students who took the quiz?
  1. $20$
  2. $23$
  3. $25$
  4. $28$

Solution

Total $= 4+6+8+5+2 = 25$.

Asked in: IMO

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