NCERT Miscellaneous Exercise Q1 - Probability

Question: A bag has 10 red, 20 blue and 30 green balls. Five are selected. Find P(all blue) and P(at least one green).

Answer: C(20,5)/C(60,5) and 1-C(30,5)/C(60,5).

Full step-by-step NCERT solution with diagrams on Something by Zero.