Subject
Bank Exam
Topic
Standerd Bank Ltd. - Trainee Assistant Officer - 2016
All 120 students in a class play cricket or football or both, 75 play cricket and 60 play football. How many students play both ?
All 120 students in a class play cricket or football or both, 75 play cricket and 60 play football. How many students play both ?
ক)
13খ)
15গ)
20ঘ)
25Explanation
Solution: অনুবাদঃ 120 জন ছাত্রের সবাই ত্রিকেট, ফুটবল অথবা উভয়টি খেলে । যদি 75 জন ক্রিকেট এবং 60 জন ফুটবল খেলে, তাহলে কতজন উভয়টি খেলে ? শুধু ক্রিকেট খেলে = 75 জন এবং ফুটবল খেলে = 60 জন ক্রিকেট ও ফুটবল খেলে = 75 + 60 = 135 জন মোট ছাত্র 120 জন হলে তাদের মধ্যে উভয়টি খেলে = 135 - 120 = 15 জন । Shortcut: Total = 1 st + 2 nd - Both + None => 120 = 75 + 60 - Both + 0 Both = 15Related questions
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