RBSE Solutions Class 5 Maths Chapter 9 Data Exercise 9.1

Exercise 9.1

Question 1. See the calendar of this year and draw a bar chart for coming holidays between July and December. Answer the following questions-
(i) Which month has maximum number of holidays?
(ii) Which month has minimum number of holidays?
(iii) Which month has more holidays August or December?
Answer: First, let's count the holidays for each month from July to December 2017:
July: 0 holidays
August: 5 holidays
September: 4 holidays
October: 7 holidays
November: 5 holidays
December: 5 holidays
Here is the bar chart showing the holidays for each month:

(i) October has the maximum number of holidays (7).
(ii) July has the minimum number of holidays (0).
(iii) Both August and December have 5 holidays each, so they have an equal number of holidays. The bar chart makes it easy to compare numbers visually.
In simple words: We counted the holidays for each month. October had the most, and July had the least. August and December had the same number of holidays.

🎯 Exam Tip: When drawing bar charts, always label both axes clearly and use an appropriate scale for the vertical axis to show the data effectively.

Question 2. The number of Poppadam (Papad) made within a week by women self help centre is shown below as a pictograph. Packet of 10 Poppadam (Papad) \( \bigodot \) = 10 Poppadam (Papad) 1 = 1 loose Poppadam (Papad) Observe the above table and answer the following questions-
(ii) Compare the production of Poppadam on Monday and Friday. Which day had more production, and by how much?
Answer: Let's first calculate the production for each day using the given key:
Monday: \( 5 \times 10 + 2 = 52 \) Poppadam
Tuesday: \( 5 \times 10 + 1 = 51 \) Poppadam
Wednesday: \( 5 \times 10 + 3 = 53 \) Poppadam
Thursday: \( 4 \times 10 + 0 = 40 \) Poppadam
Friday: \( 5 \times 10 + 3 = 53 \) Poppadam
Saturday: \( 4 \times 10 + 1 = 41 \) Poppadam
Sunday: \( 5 \times 10 + 0 = 50 \) Poppadam
Comparing Monday and Friday production:
Production on Monday = 52 Poppadam
Production on Friday = 53 Poppadam
To find the difference, we subtract the smaller number from the larger: \( 53 - 52 = 1 \).
Therefore, Friday had more production by 1 Poppadam. This pictograph helps us understand quantities easily.
In simple words: We counted the poppadams for each day. On Monday, 52 were made, and on Friday, 53 were made. So, Friday had 1 more poppadam made than Monday.

🎯 Exam Tip: When working with pictographs, always pay close attention to the key to correctly interpret the symbols and calculate quantities.

Question 3. If \( \text{picture of 5 children} \) = 5 children and tally mark | = 1 child then construct a table, that shows attendance of your class for a week and answer the following questions.
(i) On which day maximum number of students were present?
(ii) What is the sum of total presence of students for the week?
(iii) On which day minimum number of students were present?
Answer: First, let's construct the table for student attendance based on the given key and images:

Now let's answer the questions based on this table:
(i) Maximum number of students were present on Monday, with 38 students.
(ii) The sum of total presence of students for the week is \( 38 + 36 + 29 + 30 + 35 + 33 = 201 \) students. This table clearly shows the attendance pattern.
(iii) Minimum number of students were present on Wednesday, with 29 students.
In simple words: The table shows how many students came each day. Monday had the most students, Wednesday had the least, and a total of 201 students came throughout the week.

🎯 Exam Tip: Carefully count symbols and tally marks according to the key. Double-check all calculations, especially for totals, to avoid errors.