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ORA bag contain 5 black and o red balls Detwrnine the no of ways inwhich 2 black and 3 red halis con be selored.P.T0. |
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Answer» Total number of black ball =5 Total number of red ball =6 No of ways of selecting 2 black balls =5C2 ⇒5!/2!3! ⇒5×4×3!/2×3! ⇒10⇒10 No of ways of selecting 3 red balls =6C3 ⇒6!/3!3! ⇒6×5×4×3!/3×2×3! ⇒20 Total no of ways of selecting 2 black and 3 red ball =10×20 = 200 Like my answer if you find it useful! |
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