यदि किसी कक्षा में (30) विद्यार्थी हैं, (18) क्रिकेट खेलते हैं, (12) फुटबॉल खेलते हैं और (5) दोनों खेलते हैं, तो कम से कम एक खेल खेलने वाले विद्यार्थी कितने हैं?
In a class of (30) students, (18) play cricket, (12) play football, and (5) play both. How many students play at least one game?
Explanation opens after your attempt
A. (25)
Concept
At least one game is (18+12-5=25). In a Venn diagram, do not count students who play both twice.
Why this answer is correct
The correct answer is A. (25). At least one game is (18+12-5=25). In a Venn diagram, do not count students who play both twice.
Exam Tip
कम से कम एक खेल (18+12-5=25) है। वेन आरेख में दोनों खेलने वालों को दो बार न गिनें।
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