NCERT Exercise 6.4 Q2 - Permutations and Combinations

Question: Find n if (i) ²ⁿC₃ : ⁿC₃ = 12 : 1, (ii) ²ⁿC₃ : ⁿC₃ = 11 : 1.

Answer: (i) n = 5; (ii) n = 6.

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