Students can Download Maths Chapter 5 Information Processing Additional Questions and Answers, Notes Pdf, Samacheer Kalvi 7th 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 7th Maths Solutions Term 2 Chapter 5 Information Processing Additional Questions

Additional Questions and Answers

Exercise 5.1

Question 1.

Find the relationship between x and y if

Solution:

The relationship between x and y is y = -5x

Question 2.

Find the relationship between x and y if

Solution:

The relationship between x andy is y = 3x + 2

Exercise 5.2

Question 1.

Find the sum of the elements of Pascal’s triangle and find the relationship between the numbers obtained.

Solution:

Pascal’s triangle with sum of elements is given by

The numbers formed are 1, 2, 4, 8, 16, 32, 64, …………..

They can be written as 2^{0}, 2^{1}, 2^{2}, 2^{3}, 2^{4}, 2^{5}, 2^{6}, …………..

So they are the powers of base 2

The relationship is given by 2^{x-1} if x represents the row.

Exercise 5.3

Question 1.

If the following numbers are taken from Pascal’s triangle find the missing numbers.

- 9, 1, _____ = 45, 1, 11
- 1, 6, _____ = 1, 4, 15
- 21, 8, 1 = _____, 6, 28

Solutions:

- 55
- 10
- 1