Question

In an examination, 60% of students passed in English, 70% passed in maths,20% failed in both.350 students passed in both subjects .how many students appeard in the examination
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Answer 1

Answer:

Candidates failed in English

= (100 - 60)% = 40%

Candidates failed in Mathematics

= (100 - 70)% = 30%

Students passed in both subjects

=100−(20+20+10)

=50%

50% of students = 2500

Total students=250050×100

=5000

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