প্রশ্ন ও উত্তর
In a class of 50 students, 10 did not opt for math, 15 did not opt for science and 2 did not opt for either. How many students of the class opted for both math and science?
গণিত Counting and Venn Diagram 07 Oct, 2020
প্রশ্ন In a class of 50 students, 10 did not opt for math, 15 did not opt for science and 2 did not opt for either. How many students of the class opted for both math and science?
সঠিক উত্তর
27
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