Math, 18.10.2019 05:00, renukatumane109

# 6. a bag contains 4 red and 6 black balls. a ball is drawn at random from the bag, its colour is observed and ball along with two additional balls of the same colour is returned to the bag. if now a ball is drawn at random from the bag, then probability that drawn ball is red, is:

Answers: 1

Math, 19.08.2019 16:00, jack626259

Aconvex lens is in contact with concave lens. the magnitude of the ratio of their focal length is 2 . 3 their equivalent focal length is 30 cm. what are their individual focal lengths (in cm).

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Math, 20.08.2019 10:00, dasmithu1947

How to remember all the identities easy? ? they r very hard to algebric

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6. a bag contains 4 red and 6 black balls. a ball is drawn at random from the bag, its colour is obs...

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