A school has a total of 90 students. There are 30 students taking Physics, 25 taking English, and 13 taking both. Approximately what percentage of the students is taking either Physics or English?

A 32%

B 36%

C 47%

D 51%

Solution

Correct Answer: Option C

আমরা জানি ,
n(A⋃B)=n(A)+n(B)-n(A⋂B)
বা,n(A⋃B)=30+25-13
বা, n(A⋃B)=42

অতএব, নির্ণেয় ছাত্র ছাত্রীর সংখ্যা শতকরা =42/90 × 100%
=46.67%
=47% (প্রায়)

Practice More Questions on Our App!

Download our app for free and access thousands of MCQ questions with detailed solutions