NCERT Example 4 - Permutations and Combinations
Question: How many signals can be made with 5 different flags if at least 2 flags are used at a time?
Answer: 320 signals.
Full step-by-step NCERT solution with diagrams on Something by Zero.
Question: How many signals can be made with 5 different flags if at least 2 flags are used at a time?
Answer: 320 signals.
Full step-by-step NCERT solution with diagrams on Something by Zero.