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A bag has 5 red, 3 white and 2 black balls. What is the probability of picking a black or red ball from bag?(a) \(\frac{2}{13}\)(b) \(\frac{7}{13}\)(c) \(\frac{1}{4}\)(d) \(\frac{2}{15}\)This question was posed to me in a national level competition.My question is based upon Data Handling in chapter Data Handling of Mathematics – Class 8

Answer»

Correct CHOICE is (b) \(\frac{7}{13}\)

EXPLANATION: A bag has 5 RED, 3 WHITE and 2 black balls. Picking a black or red ball means we can pick any of the 7 balls. THUS, the probability of picking a black or red ball is \(\frac{7}{13}\).



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