NCERT Example 10 - Permutations and Combinations
Question: How many four-digit numbers can be formed using the digits 1 to 9 if no digit is repeated?
Answer: ⁹P₄ = 3024 numbers.
Full step-by-step NCERT solution with diagrams on Something by Zero.
Question: How many four-digit numbers can be formed using the digits 1 to 9 if no digit is repeated?
Answer: ⁹P₄ = 3024 numbers.
Full step-by-step NCERT solution with diagrams on Something by Zero.