In a group of 100 students, 49 play tennis, 55 play badminton and 4 play neither. How many play both?
Answer and explanation
Correct answer: A. 8
- Step 1: Students who play at least one sport: .
- Step 2: By inclusion-exclusion , so both .
Answer
8.
Why not the others: 4: the students who play neither are ignored. 47: that is the number who play only badminton.
Practise more Sets and Logic.
Free questions with an explanation for every one, and full timed Sultan Qaboos University Foundation & Aptitude Test mock tests.
More Sets and Logic questions
- In a group of 60 students, 27 play tennis, 29 play badminton and 8 play neither. How many play both?
- If and , find .
- How many subsets does a set with 4 elements have?
- What is the negation of the statement 'All students passed the exam'?
- What is the contrapositive of the statement 'If it rains, then the ground is wet'?