Samacheer Kalvi 8th Maths Solutions Term 1 Chapter 5 Information Processing Intext Questions

Students can Download Maths Chapter 5 Information Processing Intext Questions and Answers, Notes Pdf, Samacheer Kalvi 8th Maths Book Solutions Guide Pdf helps you to revise the complete Tamilnadu State Board New Syllabus and score more marks in your examinations.

Tamilnadu Samacheer Kalvi 8th Maths Solutions Term 1 Chapter 5 Information Processing Intext Questions

Try these (TextBook Page No 122)

Question 1.
Find the number of all possible triangles that can be formed from the triangle given below.
Solution:
Samacheer Kalvi 8th Maths Term 1 Chapter 5 Information Processing Intext Questions 1

Question 2.
Use the given figure to form a 3 × 3 magic square.
Samacheer Kalvi 8th Maths Term 1 Chapter 5 Information Processing Intext Questions 2
Solution:
Samacheer Kalvi 8th Maths Term 1 Chapter 5 Information Processing Intext Questions 3

Question 3.
Convert the tree diagram into a numeric expression
Samacheer Kalvi 8th Maths Term 1 Chapter 5 Information Processing Intext Questions 4
Solution:
(10 × 5) + (9 × 4)

Question 4.
(i) Find out the total time taken by the bus to reach from A to E via B , C and D.
(ii) Find which is the shortest route from A to E.
Solution:
Samacheer Kalvi 8th Maths Term 1 Chapter 5 Information Processing Intext Questions 5
(i) Route ⇒ 2A ➝ B ➝ C ➝ D ➝ E
Time taken ⇒ (7 + 5 + 3 + 6) hrs = 21 hrs
Samacheer Kalvi 8th Maths Term 1 Chapter 5 Information Processing Intext Questions 6

Try this (TextBook Page No 127)

Question 1.
Kumar has four different hats. He always wears a hat. Sometimes he wears the same hat more than once in a week as in the figure.
Samacheer Kalvi 8th Maths Term 1 Chapter 5 Information Processing Intext Questions 7
In how many different ways might he decide to wear his hats in one week?
Solution:
Samacheer Kalvi 8th Maths Term 1 Chapter 5 Information Processing Intext Questions 8
H1, H2, H3, H4 be Hat 1, Hat 2, Hat 3, Hat 4 respectively.
∴ In 7 × 4 = 28 different ways kumar may decide to wear his hat in one week.

Exercise 5.1

Try these (TextBook Page No 134)

Question 1.
Find any four SETs among these set of cards.
Samacheer Kalvi 8th Maths Term 1 Chapter 5 Information Processing Intext Questions 9
Solution:
Samacheer Kalvi 8th Maths Term 1 Chapter 5 Information Processing Intext Questions 10

Question 2.
This is an example for a magic square in SETs, can you make another one?
Samacheer Kalvi 8th Maths Term 1 Chapter 5 Information Processing Intext Questions 11
Solution:
Samacheer Kalvi 8th Maths Term 1 Chapter 5 Information Processing Intext Questions 12

Try this (TextBook PageNo 137)

Question 1.
Think why this graph colouring is invalid?
Samacheer Kalvi 8th Maths Term 1 Chapter 5 Information Processing Intext Questions 13
Solution:
The objective of graph colouring is to assign minimum number of colours to the verties do not have the same colour.
Here adjacent edges have the same colour.
∴ It is invalid.

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