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
Read the given information and answer the question that follows.
Six students A, B, C, D, E and F appeared in several tests. Either C or F scored the highest. Whenever C scored the highest, E scored the least. Whenever F scored the highest, B scored the least. In all the tests they got different marks. D scored higher than A but they were close competitors. A scored higher than B. C scored higher than A. E and F were close competitors. If C got the first rank, what was the rank of A?
- There are 35 street lamps in a row on a national highway. All are lit except one. The faulty lamp is $15^{\text{th}}$ from the right end. What is the position of the faulty lamp from the left end?
- Height of seven girls A, B, C, D, E, F and G are compared. Height of D is more than atleast four girls but she is not the tallest. Height of A is more than B and F and height of F is less than E. Height of A is less than D. Height of G is more than C and D both.
Which of the following statement is NOT correct? - Five girls Priya, Usha, Riya, Shreya and Tina wrote a novel. The one who wrote first gave it to Riya. The one who wrote last took it from Priya. Tina was not the first or the last to write. There were two writers in between Usha and Priya.
Who was the last to write the novel? - An apple tree is taller than a lemon tree. A papaya tree is shorter than a palm tree. A mango tree is shorter than the papaya tree but taller than the apple tree. Which is the tallest tree?
- There are six students A, B, C, D, E and F in a class. Their height is compared. D is shorter than B but taller than A. B is shorter than C. A is taller than E and F. How many students are shorter than D?
- Four friends U, V, W and X work in a garage. W knows more than V. U knows more than W, but less than X. Who is the most knowledgeable person amongst all?
- Seven students A, B, C, D, E, F and H gives a test. No two students get same marks. A gets more marks than B. H gets more marks than A. Only two students get more marks than C. D gets more marks than C and B but D doesn't get the highest marks.
If B did not get the lowest marks, then which of the following sequence of their marks is possible? - A, B, C, D and E are five friends. B is elder to C but is shortest in the group. C is taller to B, but younger to D. A is elder to D but not as tall as E. E is younger to C and is taller to B and D.
Which of the following sequence of their ages cannot be possible? - Mona ranked is $9^{\text{th}}$ from the top and $36^{\text{th}}$ from the bottom in a class. How many students are there in the class?
Important Questions from Ordering and Ranking
Examine the information given in the following paragraph and answer the items that follow: Guest lectures on five subjects viz., Economics, History, Statistics, English and Mathematics have to be arranged in a week from Monday to Friday. Only one lecture can be arranged on each day. Economics cannot be scheduled on Tuesday. Guest faculty for History is available only on Tuesday. Mathematics lecture has to be scheduled immediately after the day of Economics lecture. English lecture has to be scheduled immediately before the day of Economics lecture. Which lecture is scheduled on Monday?
Examine the information given in the following paragraph and answer the items that follow: Guest lectures on five subjects viz., Economics, History, Statistics, English and Mathematics have to be arranged in a week from Monday to Friday. Only one lecture can be arranged on each day. Economics cannot be scheduled on Tuesday. Guest faculty for History is available only on Tuesday. Mathematics lecture has to be scheduled immediately after the day of Economics lecture. English lecture has to be scheduled immediately before the day of Economics lecture. Which lecture is scheduled between Statistics and English?
Examine the information given in the following paragraph and answer the items that follow: Guest lectures on five subjects viz., Economics, History, Statistics, English and Mathematics have to be arranged in a week from Monday to Friday. Only one lecture can be arranged on each day. Economics cannot be scheduled on Tuesday. Guest faculty for History is available only on Tuesday. Mathematics lecture has to be scheduled immediately after the day of Economics lecture. English lecture has to be scheduled immediately before the day of Economics lecture. Which lecture is the last one in the week?
Examine the information given in the following paragraph and answer the items that follow: Guest lectures on five subjects viz., Economics, History, Statistics, English and Mathematics have to be arranged in a week from Monday to Friday. Only one lecture can be arranged on each day. Economics cannot be scheduled on Tuesday. Guest faculty for History is available only on Tuesday. Mathematics lecture has to be scheduled immediately after the day of Economics lecture. English lecture has to be scheduled immediately before the day of Economics lecture. Which lecture is scheduled on Wednesday?
In a row 'A' is in the 11th position from the left and 'B' is in the 10th position from the right. If 'A' and 'B' interchange, then 'A' becomes 18th from the left.
How many persons are there in the row other than 'A' and 'B'?
