To solve the problem, we need to analyze the given table and use it to determine the correct answers for the provided questions. Let's break it down step by step.
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Step 1: Understand the Table
The table shows the distribution of the number of students in a class based on their scores. Each row represents a score range, and each column represents the number of students who scored within that range.
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Score Ranges: The rows are labeled with score ranges (e.g., 0–9, 10–19, ..., 70–79).
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Number of Students: The columns represent the number of students who scored within each range.
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Total Number of Students: The last column shows the total number of students for each score range.
For example:
- In the score range 0–9, there are 2 students who scored 0–9, 3 students who scored 10–19, ..., and 1 student who scored 70–79. The total number of students in this row is 2 + 3 + ... + 1 = 15.
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Step 2: Solve Each Question
We will now solve each question using the information from the table.
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Question 1: How many students got more than 60 marks?
To find the number of students who scored more than 60 marks, we need to sum the totals for the score ranges 60–69, 70–79.
- From the table:
- Total students in 60–69: 15
- Total students in 70–79: 10
- Sum: \( 15 + 10 = 25 \)
Answer: 25 students
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Question 2: How many students got less than 40 marks?
To find the number of students who scored less than 40 marks, we need to sum the totals for the score ranges 0–9, 10–19, 20–29, and 30–39.
- From the table:
- Total students in 0–9: 15
- Total students in 10–19: 18
- Total students in 20–29: 20
- Total students in 30–39: 25
- Sum: \( 15 + 18 + 20 + 25 = 78 \)
Answer: 78 students
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Question 3: How many students got exactly 50 marks?
To find the number of students who scored exactly 50 marks, we look at the column corresponding to the score range 50–59 and the row where the score is 50.
- From the table:
- In the row for 50–59, the column for 50–59 shows 20 students.
Answer: 20 students
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Question 4: How many students got between 30 and 50 marks?
To find the number of students who scored between 30 and 50 marks, we need to sum the totals for the score ranges 30–39 and 40–49.
- From the table:
- Total students in 30–39: 25
- Total students in 40–49: 30
- Sum: \( 25 + 30 = 55 \)
Answer: 55 students
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Final Answers
1.
How many students got more than 60 marks?
\(\boxed{25}\)
2.
How many students got less than 40 marks?
\(\boxed{78}\)
3.
How many students got exactly 50 marks?
\(\boxed{20}\)
4.
How many students got between 30 and 50 marks?
\(\boxed{55}\)
Parent Tip: Review the logic above to help your child master the concept of printable worksheets year 5.
