In a school, 60% of the students passed in english,25% passed in English and
foreign language also. Where as 66.67 % of students passed in foregin language and failed in english.20 students failed in both English and foregin language.
1. whats the total strength of school (250,150,200,100)
2.what % of students passed in exactly one of two subjects - english and foregin language. (15%,65%,45%,75%)
guys i have been working on this for last 2 days but no use. can u guys give me the correct answer and also tel me hw to solve these types of questions.