in an examination 45% of the students failed in maths 15% failed in English and 30% failed in both. find the percentage of student who passed in both the subjects.
Answers
Answered by
0
Answer:
70% passed in both
Step-by-step explanation:
45% of the students failed in maths
=> 100 - 45 = 55% students Passed in maths
15% of the students failed in English
=> 100 - 15 = 85% students Passed in English
30% failed in both => 30% passed in None Subject
Total = Pass in Maths + Pass in English - Pass in both + Pass in None
=> 100 = 55 + 85 - Pass in both + 30
=> Pass in both = 70
70% passed in both
or
Total = Failes in Maths + Failed in English - Failed in Both + Failed in None
=> 100 = 45 + 15 - 30 + Failed in None
=> Failed in None = 70
Failed in None = Passed in both = 70 %
Similar questions