Calculating Total Students from Class Rank
This problem involves finding the total number of students in a class when given a student's position from both the top and the bottom.
Understanding the Ranking Principle
When calculating the total number of people in a single line or group based on one person's position, we add their rank from the top and their rank from the bottom. However, since the person themselves is counted in both ranks, we must subtract 1 to avoid double-counting.
Formula for Total Students
The formula used is:
$ \text{Total Students} = (\text{Rank from Top}) + (\text{Rank from Bottom}) - 1 $
Step-by-Step Calculation
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Identify the given ranks:
- Rank from Top = 69
- Rank from Bottom = 13
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Apply the formula:
$ \text{Total Students} = 69 + 13 - 1 $
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Perform the addition:
$ 69 + 13 = 82 $
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Perform the subtraction:
$ 82 - 1 = 81 $
Final Result
Therefore, there are 81 students in Mr. Toni's class.
Similar Questions
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Important Questions from Ordering and Ranking
In a row of people all facing north, Prince is 5th from the right end. Amit is 15th from the right end. Amit is exactly between Prince and Aditya. If Aditya is sixth from the left end of the line, how many people are there in the row?
In a row, Mansi is 29th from the left and 33rd from the right. How many students are there in the row?
A class has a total of 60 students. Student 'B' is at 41st rank in merit order from the bottom. What is the rank of student 'B' from the top?
A medical representative plans to visit each of six hospitals — A, B, C, D, E and F — exactly once during the course of one day. He is setting up his schedule for the day according to the following conditions:
i. He must visit A before B and E.
ii. He must visit B before D.
iii. The third hospital he visits must be C.
Which of the following could be the possible order in which the medical representative visits the six hospitals?Sonam is older than Renu. Komal is younger than Renu. Priya is older than Sonam. Who is the eldest of them?
