A tally chart for letter grades shows A: $7$ tallies, B: $10$ tallies, C: $8$ tallies. What is the total…

A tally chart for letter grades shows A: $7$ tallies, B: $10$ tallies, C: $8$ tallies. What is the total number of students recorded?
  1. $20$
  2. $22$
  3. $25$
  4. $18$

Solution

Total students $= 7+10+8 = 25$.

Asked in: IMO

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