Math, asked by ronyambrose16, 10 months ago

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 amitnrw
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 %

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