Example 8 - Chapter 1 Class 9 Number Systems (Term 1)
Last updated at Dec. 8, 2016 by Teachoo
Examples
Example 1 (i)
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Example 1 (ii) Deleted for CBSE Board 2022 Exams
Example 1 (iii) Important Deleted for CBSE Board 2022 Exams
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Example 7 Important
Example 8 You are here
Example 9 Important
Example 10 Important
Example 11
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Example 13
Example 14
Example 15 Important
Example 16 (i) Important
Example 16 (ii)
Example 16 (iii)
Example 16 (iv)
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Example 20 Important
Example 21 (i)
Example 21 (ii)
Example 21 (iii) Important
Example 21 (iv) Important
Transcript
Example 8 Show that 1.272727 = 1.(27) can be expressed in the form / , where p and q are integers and q 0. Let x = 1.(27) = 1.272727 Multiplying equation (1) with 100 100x = 100 (1.272727 ) 100x = 127.2727 Subtracting (2) from (1) i.e. (2) (1) 100x x = 127.2727 1.272727 99x = 126.0000 x = 126/99 x = 14/11 Thus, 1.(27) = 14/11
