Easy
Ravi ranks 12th from the top and 25th from the bottom in a class. How many students are there in the class?
Explanation
Explanation
Step 1: Formula: Total = (position from top) + (position from bottom) − 1.
Step 2: Total = 12 + 25 − 1 = 36.
Step 3: Why subtract 1? Ravi is counted twice – once in each position – so we remove the extra count.
Step 4: Check: 11 students above him + Ravi + 24 students below him = 36 ✓.
Answer: 36 students.
PRO TIP
Re-check your working by substituting the answer back into the original question.