NCERT Example 9 - Probability
Question: Four cities A, B, C, D are visited in a random order. Find probabilities of the five ordering conditions in the example.
Answer: (i) 1/2; (ii) 1/6; (iii) 1/12; (iv) 1/2; (v) 1/4.
Full step-by-step NCERT solution with diagrams on Something by Zero.