- A145
- B165
- C155
- D135
View written solutionFree
Correct answer: C
- Interpret the condition carefully
We have:
- batsmen, among whom one specific batsman must be included as captain.
- bowlers, among whom one specific bowler must be included as vice-captain.
A team of players is to be selected such that:
- at least batsmen are included,
- at least bowlers are included,
- the specified captain and vice-captain must be included.
Since only batsmen and bowlers are available, if the team has batsmen and bowlers, then with
- Possible compositions of the team
From and both at least , the possibilities are:
We now count each case, ensuring the fixed captain batsman and fixed vice-captain bowler are included.
- Case 1: 4 batsmen and 6 bowlers
-
Since all bowlers are selected, and the vice-captain bowler is among them automatically, bowlers can be chosen in way after fixing the vice-captain.
-
For batsmen, one fixed captain is already included. We need more from the remaining batsmen:
So total ways in this case:
- Case 2: 5 batsmen and 5 bowlers
-
Batsmen: captain is fixed, so choose more from remaining :
-
Bowlers: vice-captain is fixed, so choose more from remaining :
So total ways in this case:
- Case 3: 6 batsmen and 4 bowlers
-
Batsmen: captain is fixed, so choose more from remaining :
-
Bowlers: vice-captain is fixed, so choose more from remaining :
So total ways in this case:
- Add all cases
Total number of teams:
- Compare with options
The correct option is which is Option C.
- Comparison with stored answer
Stored correct answer: C
Our derived answer is also C.
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