Samacheer Kalvi Class 4 Maths Solutions Term 1 Chapter 6 Information Processing InText Questions

Activity (Text Book Page No. 73)

Question. Find out all the possible ways of dressing, using 2 pants, 4 shirts.
Answer: To find all possible ways to dress, we combine each of the 2 pants with each of the 4 shirts. This means we have 2 types of pants (Grey and Blue) and 4 types of shirts (Red, Pink, Green, Blue). The total number of unique outfits can be found by multiplying the number of pants by the number of shirts.
Here are all the combinations:
- Grey colour pant with Red colour shirt
- Grey colour pant with Pink colour shirt
- Grey colour pant with Green colour shirt
- Grey colour pant with Blue colour shirt
- Blue colour pant with Red colour shirt
- Blue colour pant with Pink colour shirt
- Blue colour pant with Green colour shirt
- Blue colour pant with Blue colour shirt
In simple words: You have 2 pants and 4 shirts. You can make 8 different outfits by matching each pant with every shirt.

🎯 Exam Tip: When finding combinations, always make sure to list every unique pair clearly, or use multiplication to find the total number of possibilities.

Do Yourself (Text Book Page No. 74)

Question 1. Create 3 letter words using the given word without “t” at the end. Tea, Car, Ear, Tee, Ter
Answer: The words that can be created are:
- Tea
- Car
- Ear
- Tee
- Ter
Word-building exercises like this help improve vocabulary and understanding of how letters combine to form new words.
In simple words: We can make the words Tea, Car, Ear, Tee, and Ter using the letters provided.

🎯 Exam Tip: Pay close attention to any specific rules given, such as letter counts or excluded letters, to ensure your words fit the criteria.

Question 2. Create 5 letter words using the gien letters only once. A D E G L M N R T Anger, Medal, Angel, Ladge, Range
Answer: Using each letter only once from the set (A, D, E, G, L, M, N, R, T), the 5-letter words we can form are:
- Anger
- Medal
- Angel
- Ladge
- Range
This activity encourages careful letter selection and helps in recognizing common word patterns.
In simple words: Using each letter from the list A, D, E, G, L, M, N, R, T only one time, we can make the words Anger, Medal, Angel, Ladge, and Range.

🎯 Exam Tip: When forming words from a given set of letters, try to think of common prefixes, suffixes, and root words to find possibilities efficiently.

Try This (Text Book Page No. 77)

Question 1. Number of people who speak Tamil
Answer: Based on the provided data in the pie chart, the number of people who speak Tamil is 50. Understanding this kind of data helps us see how different groups of people are represented.
In simple words: From the chart, 50 people speak Tamil.

🎯 Exam Tip: Always refer directly to the given chart or graph to extract accurate numerical information for such questions.

Question 2. Number of people who speak English
Answer: According to the given data, the number of people who speak English is 20. Pie charts are useful because they allow us to quickly compare the sizes of different groups.
In simple words: The chart shows that 20 people speak English.

🎯 Exam Tip: Ensure you read the labels for each section of the pie chart carefully to avoid confusion between similar values.

Question 3. Number of people who speak Malayalam
Answer: From the information presented, the number of people who speak Malayalam is 20. The total number of people for all languages in a pie chart should sum up to the total population surveyed.
In simple words: 20 people speak Malayalam, as seen in the chart.

🎯 Exam Tip: Double-check the numbers against the visual size of the slices to ensure they make logical sense.

Question 4. Number of people who speak Telugu
Answer: Looking at the data, the number of people who speak Telugu is 10. Knowing the exact number for each group can help in planning resources or activities for different language speakers.
In simple words: The chart tells us that 10 people speak Telugu.

🎯 Exam Tip: For smaller segments in a pie chart, always confirm the exact value by reading the label, as visual estimation can sometimes be misleading.

Activity (Text Book Page No. 77)

Question 1. Draw a pie-chart for family Budget of food, bus fare and other expenses.
Answer: Below is a pie chart illustrating the family budget. It shows how the total expenses are divided among food, bus fare, and other expenses. Pie charts are excellent for showing how a whole (like a total budget) is divided into its constituent parts.

🎯 Exam Tip: When drawing pie charts, ensure the angles for each segment are calculated correctly (percentage * 360 degrees) and labeled clearly with both the category and its percentage.

Question 2. Draw a pie-chart for favourite fruits of your friends.
Answer: This activity is designed for students to complete by themselves. It involves surveying friends to collect data on their favorite fruits and then representing that data visually in a pie chart. Such surveys help in understanding preferences within a group.
In simple words: This task asks you to find out what fruits your friends like best and then draw a pie chart to show what you found.

🎯 Exam Tip: For activities requiring data collection, remember to ask a clear question, record answers accurately, and then tally the results before attempting to draw the chart.