80% pass in english, 70%pass in maths , 10%fail in both ,
144 pass in both . How many all appeared to the test?
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Answer Posted / abimozhi
In an examination, 60% passed in English and 70%in Maths,but 20% failed in both of these subjects.If 2500 candidates passed in both the subjects, the number of the candidates appeared for the examination?
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