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CBSE Class 9 Answered

A bulb is selected at random . Find the probability that the life time of the selected bulb is: (i) Less than 400 (ii) Between 300 to 800 hours. (iii) At least 700 hours.
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Asked by gujarsurjeet007 | 22 Feb, 2018, 04:21: PM
answered-by-expert Expert Answer
https://www.topperlearning.com/study/cbse/class-9/mathematics/text-book-solutions/r-d-sharma-mathematics-ix-2017/32/probability/271/b101c1s3e9
 
Please go through above link.
Answered by Sneha shidid | 22 Feb, 2018, 04:56: PM

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