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A consignment of 20 picture tubes contains 5 defectives. Two tubes are selected one after the other at random. The...
Solution
Number of ways of selecting one defective pipe is = 5C1 = 5Number of ways of selecting one pipe from 20 = 20C1 = 20Probability of selecting a defective pipe = 5/20 =...
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Arrange the sentences A, B, C, and D from a logical sequence between sentences 1 and 6. (1) India’s experience of industrialization is characteristic of the difficulties faced by a newly independent developing country. (A) In 1947, India was undoubtedly an under – developed country with one of the lowest…
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