MHT CET Mathematics question
The number of combinations of different objects A, B, C, D taken at a time is
Answer: (B)
Solution
Combinations ignore order: . The combinations are AB, AC, AD, BC, BD, CD. Hence .
The number of combinations of different objects A, B, C, D taken at a time is
Combinations ignore order: . The combinations are AB, AC, AD, BC, BD, CD. Hence .