AP EAMCET · Maths · Permutation Combination
Number of ways of forming a committee of members out of Indians, Americans and Australians such that there will be at least one member from each country in the committee is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
The number of ways a could form in which at least one member from each country in the committee. We have triplets 1,1,4→31,2,3→3!=62,2,2→1 Now total ways =3C15×C15×C45+6C15×C25×C35+C25×C25×C25 =375+3000+1000=4375
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