Chapter 1 Class 9 Number Systems
Ex 1.1, 4 (i) Important
Ex 1.2, 1 (i)
Ex 1.2, 3 Important
Example 7 Important
Example 9 Important
Example 10 Important
Ex 1.3, 3 (i) You are here
Ex 1.3, 8 Important
Ex 1.3, 9 (i)
Example 15 (i) Important
Example 18
Ex 1.4, 1 (i)
Ex 1.4, 2 (i) Important
Ex 1.4, 4
Ex 1.4, 5 (i)
Example 20 (i)
Ex 1.5, 1 (i)
Ex 1.5, 2 (i) Important
Ex 1.5, 3 (i) Important
Chapter 1 Class 9 Number Systems
Last updated at April 16, 2024 by Teachoo
Ex 1.3, 3 Express the following in the form 𝑝/𝑞 where p and q are integers and q ≠ 0. 0.6 ̅ Let x = 0.6 ̅ = 0.6666….. Multiplying equation (1) with 10 10x = 10 × (0.666…) 10x = 6.666… Subtracting (2) from (1) i.e. (2) – (1) 10x – x = 6.6666… – 0. 6666… 9x = 6 x = 6/9 x = 2/3 Thus, 0.6 ̅ = 𝟐/𝟑