In an exam `60%` of the candidates passed in Maths and `70%` candidates passed in English and `10%` candidates failed in both the subjects. If 300 candidates passed in both the subjects. The total number of candidates appeared in the exam.

In an examination, 60% of the candidates passed in English and 70% of the candidates passed in Mathematics, but 20% failed in both of these subjects. If 2500 candidates passed in both the subjects, the number of candidates that appeared at the examination was

In an examination 70% of the candidates passed in English. 80% passed in Mathematics. 10% failed in both the subjects. If 144 candidates pased in both, the total number of candidates was :

In an examination 70% of the candidates passed in English, 65% in Mathematics, 27 % failed in both the subjects and 248 candidates passed in both subjects. Find the total number of candidates.

In the certain examination,77% candidates passedin English and 34% failed in Mathematics.If 13% failed in both the subjects and 784 candidates passed in both the subjects,then the total number of candidates was

In an examination 80% candidates passed in English and 85% candidates passed in Mathematics. If 73% candidates passed in both these subjects, then what per cent of candidates failed in both the subjects ?