In a school 80% students passed in Bangla and 65% passed in Science. If 50% of the students have passed both the subjects, what percent of the students have failed in both Bangla and Science?

10%

15%

20%

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

ব্যাখ্যা ও সঠিক সমাধান

উত্তর: 5%

Students passed in atleast one subject = 80% + 65% - 50% = 95% Students failed in both subjects = 100% - 95% = 5%

বিস্তারিত সমাধান