A team of three officers must be selected from A, B, C, D, and E. If A is selected, B must also be selected. C and D cannot be selected together. At least one of D or E must be selected. B and E cannot be selected together. Which team can be selected?
- B, C, D
- B, C, E
- A, B, D
- None of these
Explanation
Let's check each team against the rules:
Rules:
1. If A is selected → B must also be selected
2. C and D cannot be together
3. At least one of D or E must be selected
4. B and E cannot be together
B, C, D
Rule 2: C and D are together → Fails
B, C, E
Rule 4: B and E are together → Fails
A, B, D
1. A is selected, B is selected → OK
2. C and D not together → OK
3. D is selected → OK
4. B and E not together → OK
Last verified on 12-07-2026
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