NCERT Exercise 6.3 Q11 - Permutations and Combinations
Question: For PERMUTATIONS, find arrangements where (i) P starts and S ends, (ii) all vowels are together, (iii) exactly four letters lie between P and S.
Answer: (i) 1,814,400; (ii) 302,400; (iii) 25,401,600.
Full step-by-step NCERT solution with diagrams on Something by Zero.