In an examination of quantitative aptitude and logical reasoning. 65% examinees cleared quantitative aptitude test while 70% cleared logical reasoning test. If 50% examinees passed both the tests. then how many failed in both tests?

• Total %age of student passed=65+(70-50)=85%
  So,%age of student failed in both subject=15%
• 8 years agoHelpfull: Yes(4) No(0)
• No of students who passed in at least one subject:
  65+70-50=85
  If total students are 100 .no of students who failed in both subjects = total students-students who passed in at least one subjective. 100-85=15%
• 8 years agoHelpfull: Yes(1) No(0)
• ans :-15%
  
  a=100-65=35
  b=100-70=30
  a^b=100-50=50
  n(aub)=n(a)+n(b)-n(a^b)=15
• 8 years agoHelpfull: Yes(1) No(0)